US1572386A - Rotary drill bit - Google Patents
Rotary drill bit Download PDFInfo
- Publication number
- US1572386A US1572386A US651758A US65175823A US1572386A US 1572386 A US1572386 A US 1572386A US 651758 A US651758 A US 651758A US 65175823 A US65175823 A US 65175823A US 1572386 A US1572386 A US 1572386A
- Authority
- US
- United States
- Prior art keywords
- drill bit
- shells
- rotary drill
- bit
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000005520 cutting process Methods 0.000 description 14
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
- B28D1/041—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs with cylinder saws, e.g. trepanning; saw cylinders, e.g. having their cutting rim equipped with abrasive particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
- B23D61/02—Circular saw blades
- B23D61/025—Details of saw blade body
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/02—Core bits
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
- E21B10/605—Drill bits characterised by conduits or nozzles for drilling fluids the bit being a core-bit
Definitions
- My invention relates to rotary bits for drilling wells.
- the objects of my invention are to pro vide a rotary drill bit which may be operated successfully at high speeds, and which will retain a sharp and effective cutting face throughout the entire life of the bit.
- a further object is to provide a drill bit which is adapted for removing a section or sections of core from the well, to permit examination at the surface, of the formation in which the bit is working.
- My improved drill bit is capable of etticent operation at speeds of 250 revolutions per minute and higher, which is the maXimum speed which is at present being attempted, and is therefore particularly adapted for direct connection with an electric motor located above ground, or with an electric or fluid operated motor .located yin the well immediately above the bit and suspended by a stationary drill stem. On account of the form of my bit, it can be used at the high s eeds referred to with a circulating mud uid, without expending unnecessary power in whirling or churning the mud.
- Fig. l is a part sectional perspective view of my improved rotary drill bit.
- Fig. 2 is a transverse section of the same, taken on the line 2-2 of Fig. l.
- thereference numeral 1 designates the outermost of a plurality of cylindrical shells which form the body of the drill bit the inner shells being designated b l fdr connecting said shells to the drill stem or motor shaft. Said shank is provided and 1" respectively, and 2 is a shank .witlra central bore 3. which extends to the interior of the shell 1 as shown in Fig. l,
- the lower or discharge end of the bore 3 may assume any desired form, in order to direct the issuing mud fluid in the desired manner.
- Each of the shells is provided with a plurality of perforations 4, which may have various desired shapes and positions. These perfor-ations not only provide means of escape for the mud Huid, but also provide a notched or serrated lower edge for the drill body, as shown at 4 which constitutes the cutting face of the bit. This cutting face, moreover, remains notched or serrated, and 'therefore effective, throughout the life of the bit. because as said face wears away,
- Each of the shells is provided, both eX- teriorly and interiorly, with lateral projections, which may be of any desired form and formed with or secured to said shells in any suitable manner.
- these lateral ,-,rojections are shown as helically directed ribs 5, formed integrally with the shells, and are for the purpose of providingv sufficient clearance between the shells and the bore and cores in which they are rotatf ing, to prevent binding.
- the shells may be provided interiorly with suitably formed transverse cutters 6, for cutting and breaking up4 the core formed within each of said shells by its downward boring into the formation.v If desired, the transverse cutters 6, for cutting and breaking up4 the core formed within each of said shells by its downward boring into the formation.v If desired, the transverse cutters 6, for cutting and breaking up4 the core formed within each of said shells by its downward boring into the formation.v If desired, the transverse cutters 6, for cutting and breaking up4 the core formed within each of said shells by its downward boring into the formation.v If desired, the transverse cutters 6, for cutting and breaking up4 the core formed within each of said shells by its downward boring into the formation.v If desired, the transverse cutters 6, for cutting and breaking up4 the core formed within each of said shells by its downward boring into the formation.v If desired, the transverse cutters 6, for cutting and breaking up4 the core formed within each of said shells by its downward boring into the formation.v If desired, the transverse cutters 6, for cutting and breaking up4
- transverse core cutters 6 may be olnittedor removed, and any well known form of core lifter, not shown 1n the drawings, may be used in connection with the drill bit in the usual manner, for the purpose of removing entire section-s of the core for examination. This process is well known in the art of well drilling, and is referred to herein'nierely to emphasize the adaptability of my drill bit to such core taking.
- a rotary drill bit comprising a plurality of spaced substantially cylindrical concentric shells, each having a cutting face and each shell having a plurality of per,- lorations in its wall.
- a rotary drill bit comprising a plurality of spa-ccd substantially cylindrical concentric shells, each having a cutting face formed at one end and each shell having a plurality of perforations in its wall; and lateral projections extending from the surfaces of each shell.
- a rotary drill bit comprising a plurality of connected substantially cylindrical concentri: shells. each having a cutting face and each shell having a. plurality of perforations in its wall; and 'transverse core cutters carried by and between the shells.
- a rotary drill bit comprising a plurality of connected substantially cylindrical concentric shells, each having a cutting face 'formed at one end, and each shell having a plurality of perforations in its Wall; lateral projection-s extending from the'surfaces of each shell; and transverse core cutters carried by and between the shells.
- a rotary drill bit comprising a plurality of substantially cylindrical concentric shells, connected together at their upper ends and spaced apart at their lower ends, each shell having a cutting face at itslower end and a plurality of perforations in its wall.
- a rotary drill bit comprising a plurality of substantially cylindrical concentric shells spaced apart at their lower ends, the upper end portions of all said shells being integral, and each shell having a cutting face at its lower end and a plurality of apertures in its Wall.
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Drilling Tools (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Earth Drilling (AREA)
Description
INVENTOR ATTORNEYS Feb. 9 1926.
' L. G. GATES ROTARY DRILL BIT Filed July 16 1923 a ya@ Apw Mw i m xl/ fr),
v sss i n, f O AIV i Patented Feb. 9, 1926.
' LEROY G. GATES, OF BAKERSFIELD, CALIFORNIA.
ROTARY DRILL BIT.
Application filed July-16, 1923. Serial No. 651,758.
Bakersfield, in the county of Kern and State of California, have invented certain new and useful Improvements 1n Rotary Drill Bits, of which the following is a specification.
My invention relates to rotary bits for drilling wells.
The objects of my invention are to pro vide a rotary drill bit which may be operated successfully at high speeds, and which will retain a sharp and effective cutting face throughout the entire life of the bit. A further object is to provide a drill bit which is adapted for removing a section or sections of core from the well, to permit examination at the surface, of the formation in which the bit is working.
My improved drill bit is capable of etticent operation at speeds of 250 revolutions per minute and higher, which is the maXimum speed which is at present being attempted, and is therefore particularly adapted for direct connection with an electric motor located above ground, or with an electric or fluid operated motor .located yin the well immediately above the bit and suspended by a stationary drill stem. On account of the form of my bit, it can be used at the high s eeds referred to with a circulating mud uid, without expending unnecessary power in whirling or churning the mud.
The form and construction of my drill bit may be varied considerably from that shown in the accompanying rhawings and hereinafter described, without departing from the spirit of the invention as expressed in the claims hereto appended.
With this in view, a preferred embodiment of my invention will now be fully de scribed with reference to the accompanying drawings, wherein i Fig. l is a part sectional perspective view of my improved rotary drill bit.
Fig. 2 is a transverse section of the same, taken on the line 2-2 of Fig. l.
In the drawings, thereference numeral 1 designates the outermost of a plurality of cylindrical shells which form the body of the drill bit the inner shells being designated b l fdr connecting said shells to the drill stem or motor shaft. Said shank is provided and 1" respectively, and 2 is a shank .witlra central bore 3. which extends to the interior of the shell 1 as shown in Fig. l,
for the purpose of conducting `mud fiuid thereinto. It is to be understood that the lower or discharge end of the bore 3 may assume any desired form, in order to direct the issuing mud fluid in the desired manner.
Each of the shells is provided with a plurality of perforations 4, which may have various desired shapes and positions. These perfor-ations not only provide means of escape for the mud Huid, but also provide a notched or serrated lower edge for the drill body, as shown at 4 which constitutes the cutting face of the bit. This cutting face, moreover, remains notched or serrated, and 'therefore effective, throughout the life of the bit. because as said face wears away,
fresh perforat-ions are intercepted, and eachy such intercepted perforation forms a new notch in said cutting face. Y
Each of the shells is provided, both eX- teriorly and interiorly, with lateral projections, which may be of any desired form and formed with or secured to said shells in any suitable manner. In the drawings these lateral ,-,rojections are shown as helically directed ribs 5, formed integrally with the shells, and are for the purpose of providingv sufficient clearance between the shells and the bore and cores in which they are rotatf ing, to prevent binding. l
The shells may be provided interiorly with suitably formed transverse cutters 6, for cutting and breaking up4 the core formed within each of said shells by its downward boring into the formation.v If desired, the
transverse core cutters 6 may be olnittedor removed, and any well known form of core lifter, not shown 1n the drawings, may be used in connection with the drill bit in the usual manner, for the purpose of removing entire section-s of the core for examination. This process is well known in the art of well drilling, and is referred to herein'nierely to emphasize the adaptability of my drill bit to such core taking.
It is to be noted that, on account of the cylindrical construction of mydrill bit and its plurality of shells, the bit is well adapted for working in hard formation, no power is wasted in churning or whirling the mud fluid and cuttings carried thereby, and on account of the laterally projecting clearance ribs 5, the friction between the non-cutting portions of the bit and the sides of the bore is reduced to a minimum. Thus iny drill bit is capable ot' elicient operation at speeds considerably in excess ot' those now employed. Moreover, on account of the perlorations 4, the cutting edge or edges of the bit remain effective until the entire bit is worn away.
I claim:
l. A rotary drill bit comprising a plurality of spaced substantially cylindrical concentric shells, each having a cutting face and each shell having a plurality of per,- lorations in its wall.
L. A rotary drill bit comprising a plurality of spa-ccd substantially cylindrical concentric shells, each having a cutting face formed at one end and each shell having a plurality of perforations in its wall; and lateral projections extending from the surfaces of each shell.
3. A rotary drill bit comprising a plurality of connected substantially cylindrical concentri: shells. each having a cutting face and each shell having a. plurality of perforations in its wall; and 'transverse core cutters carried by and between the shells.
4. A rotary drill bit comprising a plurality of connected substantially cylindrical concentric shells, each having a cutting face 'formed at one end, and each shell having a plurality of perforations in its Wall; lateral projection-s extending from the'surfaces of each shell; and transverse core cutters carried by and between the shells.
5. A rotary drill bit comprising a plurality of substantially cylindrical concentric shells, connected together at their upper ends and spaced apart at their lower ends, each shell having a cutting face at itslower end and a plurality of perforations in its wall.
6. A rotary drill bit comprising a plurality of substantially cylindrical concentric shells spaced apart at their lower ends, the upper end portions of all said shells being integral, and each shell having a cutting face at its lower end and a plurality of apertures in its Wall.
In testimony whereof I have signed my name to this specification.
LEROY G. GATES.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US651758A US1572386A (en) | 1923-07-16 | 1923-07-16 | Rotary drill bit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US651758A US1572386A (en) | 1923-07-16 | 1923-07-16 | Rotary drill bit |
Publications (1)
Publication Number | Publication Date |
---|---|
US1572386A true US1572386A (en) | 1926-02-09 |
Family
ID=24614120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US651758A Expired - Lifetime US1572386A (en) | 1923-07-16 | 1923-07-16 | Rotary drill bit |
Country Status (1)
Country | Link |
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US (1) | US1572386A (en) |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2575975A (en) * | 1950-04-01 | 1951-11-20 | James S Robbins | Rock drill |
US2594256A (en) * | 1951-02-03 | 1952-04-22 | Charles E Compton | Mining machine head |
US2830795A (en) * | 1956-11-30 | 1958-04-15 | Jr Edwin B Center | Well drilling bit |
US3070181A (en) * | 1960-05-09 | 1962-12-25 | Jersey Prod Res Co | Roller bit tooth |
US4230194A (en) * | 1979-02-23 | 1980-10-28 | Logan Jr Clifford K | Rotary drill bit |
US4230193A (en) * | 1978-12-15 | 1980-10-28 | Arthur G. Burki | Rotary drill bit |
US4324300A (en) * | 1980-06-30 | 1982-04-13 | Logan Jr Clifford K | Rotary drill bit |
US4354561A (en) * | 1980-08-21 | 1982-10-19 | Bell Charles Haney | Reciprocating drill bit |
WO1996001728A1 (en) * | 1994-07-07 | 1996-01-25 | Zhengshu Chen | A rotary cutting tool and a rotary cutter comprising such tool for once-forming a cylindrical granite article |
US5791424A (en) * | 1995-03-03 | 1998-08-11 | Hawera Probst Gmbh | Drill bit for the rotary-percussive drilling of preferably rock, concrete or the like |
US20050016775A1 (en) * | 2002-01-08 | 2005-01-27 | Toshio Hiranuma | Core drill |
EP2122111A2 (en) * | 2006-12-14 | 2009-11-25 | Boart Longyear | Core drill bit with extended matrix height |
US20100089660A1 (en) * | 2006-12-14 | 2010-04-15 | Longyear Tm, Inc. | Drill bits with axially-tapered waterways |
US20110067924A1 (en) * | 2009-09-22 | 2011-03-24 | Longyear Tm, Inc. | Impregnated cutting elements with large abrasive cutting media and methods of making and using the same |
AU2011201711B1 (en) * | 2006-12-14 | 2011-07-28 | Boart Longyear Company | Core drill bit with extended matrix height |
US8657894B2 (en) | 2011-04-15 | 2014-02-25 | Longyear Tm, Inc. | Use of resonant mixing to produce impregnated bits |
US9279292B2 (en) | 2013-11-20 | 2016-03-08 | Longyear Tm, Inc. | Drill bits having flushing and systems for using same |
US9500036B2 (en) | 2006-12-14 | 2016-11-22 | Longyear Tm, Inc. | Single-waterway drill bits and systems for using same |
US9506298B2 (en) | 2013-11-20 | 2016-11-29 | Longyear Tm, Inc. | Drill bits having blind-hole flushing and systems for using same |
US10702975B2 (en) | 2015-01-12 | 2020-07-07 | Longyear Tm, Inc. | Drilling tools having matrices with carbide-forming alloys, and methods of making and using same |
IT202000014086A1 (en) * | 2020-06-13 | 2021-12-13 | Sip & T S P A | CORE DRILL WITH THREE CONCENTRIC DRILLING HEADS |
-
1923
- 1923-07-16 US US651758A patent/US1572386A/en not_active Expired - Lifetime
Cited By (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2575975A (en) * | 1950-04-01 | 1951-11-20 | James S Robbins | Rock drill |
US2594256A (en) * | 1951-02-03 | 1952-04-22 | Charles E Compton | Mining machine head |
US2830795A (en) * | 1956-11-30 | 1958-04-15 | Jr Edwin B Center | Well drilling bit |
US3070181A (en) * | 1960-05-09 | 1962-12-25 | Jersey Prod Res Co | Roller bit tooth |
US4230193A (en) * | 1978-12-15 | 1980-10-28 | Arthur G. Burki | Rotary drill bit |
US4230194A (en) * | 1979-02-23 | 1980-10-28 | Logan Jr Clifford K | Rotary drill bit |
US4324300A (en) * | 1980-06-30 | 1982-04-13 | Logan Jr Clifford K | Rotary drill bit |
US4354561A (en) * | 1980-08-21 | 1982-10-19 | Bell Charles Haney | Reciprocating drill bit |
WO1996001728A1 (en) * | 1994-07-07 | 1996-01-25 | Zhengshu Chen | A rotary cutting tool and a rotary cutter comprising such tool for once-forming a cylindrical granite article |
US5791424A (en) * | 1995-03-03 | 1998-08-11 | Hawera Probst Gmbh | Drill bit for the rotary-percussive drilling of preferably rock, concrete or the like |
US20050016775A1 (en) * | 2002-01-08 | 2005-01-27 | Toshio Hiranuma | Core drill |
US6945339B2 (en) * | 2002-01-18 | 2005-09-20 | Max Co., Ltd. | Core drill |
US7909119B2 (en) * | 2006-12-14 | 2011-03-22 | Longyear Tm, Inc. | Drill bits with notches and enclosed slots |
AU2011201706B2 (en) * | 2006-12-14 | 2011-06-23 | Longyear Tm, Inc. | Core drill bit with extended matrix height |
US20100012385A1 (en) * | 2006-12-14 | 2010-01-21 | Longyear Tm, Inc. | Drill bits with enclosed fluid slots |
US20100012381A1 (en) * | 2006-12-14 | 2010-01-21 | Longyear Tm, Inc. | Drill bits with notches and enclosed slots |
US20100012382A1 (en) * | 2006-12-14 | 2010-01-21 | Longyear Tm, Inc. | Drill bits with increased crown height |
US20100012386A1 (en) * | 2006-12-14 | 2010-01-21 | Longyear Tm, Inc. | Drill bits with enclosed slots |
US20100089660A1 (en) * | 2006-12-14 | 2010-04-15 | Longyear Tm, Inc. | Drill bits with axially-tapered waterways |
US7828090B2 (en) | 2006-12-14 | 2010-11-09 | Longyear Tm, Inc. | Drill bits with enclosed fluid slots and internal flutes |
US7874384B2 (en) | 2006-12-14 | 2011-01-25 | Longyear Tm, Inc. | Drill bits with increased crown height |
US20110031027A1 (en) * | 2006-12-14 | 2011-02-10 | Longyear Tm, Inc. | Core drill bits with enclosed fluid slots |
EP2122111A2 (en) * | 2006-12-14 | 2009-11-25 | Boart Longyear | Core drill bit with extended matrix height |
EP3299573A1 (en) * | 2006-12-14 | 2018-03-28 | Longyear TM, Inc. | Core drill bit |
US7918288B2 (en) | 2006-12-14 | 2011-04-05 | Longyear Tm, Inc. | Drill bits with enclosed fluid slots and method |
US7958954B2 (en) | 2006-12-14 | 2011-06-14 | Longyear Tm, Inc. | Drill bits with enclosed slots |
AU2011201713B2 (en) * | 2006-12-14 | 2011-06-16 | Longyear Tm, Inc. | Core drill bit with extended matrix height |
US20100006344A1 (en) * | 2006-12-14 | 2010-01-14 | Longyear Tm, Inc. | Drill bits with enclosed fluid slots and internal flutes |
AU2011201707B2 (en) * | 2006-12-14 | 2011-07-21 | Longyear Tm, Inc. | Core drill bit with extended matrix height |
AU2011201711B1 (en) * | 2006-12-14 | 2011-07-28 | Boart Longyear Company | Core drill bit with extended matrix height |
AU2011201713C1 (en) * | 2006-12-14 | 2011-11-03 | Longyear Tm, Inc. | Core drill bit with extended matrix height |
US8051929B2 (en) | 2006-12-14 | 2011-11-08 | Longyear Tm, Inc. | Core drill bits with enclosed fluid slots |
US8459381B2 (en) | 2006-12-14 | 2013-06-11 | Longyear Tm, Inc. | Drill bits with axially-tapered waterways |
US9500036B2 (en) | 2006-12-14 | 2016-11-22 | Longyear Tm, Inc. | Single-waterway drill bits and systems for using same |
US9074429B2 (en) | 2006-12-14 | 2015-07-07 | Longyear Tm, Inc. | Drill bits with axially-tapered waterways |
EP2122111A4 (en) * | 2006-12-14 | 2014-07-09 | Longyear Tm Inc | Core drill bit with extended matrix height |
US8590646B2 (en) | 2009-09-22 | 2013-11-26 | Longyear Tm, Inc. | Impregnated cutting elements with large abrasive cutting media and methods of making and using the same |
US9903165B2 (en) | 2009-09-22 | 2018-02-27 | Longyear Tm, Inc. | Drill bits with axially-tapered waterways |
US20110067924A1 (en) * | 2009-09-22 | 2011-03-24 | Longyear Tm, Inc. | Impregnated cutting elements with large abrasive cutting media and methods of making and using the same |
US8657894B2 (en) | 2011-04-15 | 2014-02-25 | Longyear Tm, Inc. | Use of resonant mixing to produce impregnated bits |
US9279292B2 (en) | 2013-11-20 | 2016-03-08 | Longyear Tm, Inc. | Drill bits having flushing and systems for using same |
US9506298B2 (en) | 2013-11-20 | 2016-11-29 | Longyear Tm, Inc. | Drill bits having blind-hole flushing and systems for using same |
US10702975B2 (en) | 2015-01-12 | 2020-07-07 | Longyear Tm, Inc. | Drilling tools having matrices with carbide-forming alloys, and methods of making and using same |
IT202000014086A1 (en) * | 2020-06-13 | 2021-12-13 | Sip & T S P A | CORE DRILL WITH THREE CONCENTRIC DRILLING HEADS |
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