FR2271000A1 - Masonry drill with centring bit - hardmetal studs on cutting face and bit face, angled at diameter rims - Google Patents
Masonry drill with centring bit - hardmetal studs on cutting face and bit face, angled at diameter rimsInfo
- Publication number
- FR2271000A1 FR2271000A1 FR7514305A FR7514305A FR2271000A1 FR 2271000 A1 FR2271000 A1 FR 2271000A1 FR 7514305 A FR7514305 A FR 7514305A FR 7514305 A FR7514305 A FR 7514305A FR 2271000 A1 FR2271000 A1 FR 2271000A1
- Authority
- FR
- France
- Prior art keywords
- bit
- studs
- face
- hardmetal
- centring
- 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.)
- Withdrawn
Links
- 238000010438 heat treatment Methods 0.000 abstract 1
Classifications
-
- 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
- E21B10/36—Percussion drill bits
- E21B10/40—Percussion drill bits with leading portion
-
- 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
- E21B10/445—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts percussion type, e.g. for masonry
-
- 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
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/56—Button-type inserts
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19742423510 DE2423510A1 (de) | 1974-05-15 | 1974-05-15 | Gesteinsbohrer |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2271000A1 true FR2271000A1 (en) | 1975-12-12 |
Family
ID=5915593
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7514305A Withdrawn FR2271000A1 (en) | 1974-05-15 | 1975-05-07 | Masonry drill with centring bit - hardmetal studs on cutting face and bit face, angled at diameter rims |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE2423510A1 (fr) |
FR (1) | FR2271000A1 (fr) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2412392A1 (fr) * | 1977-12-21 | 1979-07-20 | Krupp Gmbh | Fleuret a roches |
EP0036847A2 (fr) * | 1980-03-26 | 1981-09-30 | Sandvik Aktiebolag | Outil de forage |
GB2431127A (en) * | 2005-10-08 | 2007-04-18 | Milwaukee Electric Tool Corp | Drill bit with removable cutting elements |
GB2479146A (en) * | 2010-03-30 | 2011-10-05 | Paul James Bentley | Hole cutter |
US9339874B2 (en) | 2006-03-02 | 2016-05-17 | Milwaukee Electric Tool Corporation | Cutting tool |
US9500038B2 (en) | 2013-02-01 | 2016-11-22 | Milwaukee Electric Tool Corporation | Auger bit with replaceable cutting bit |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3919264C2 (de) * | 1989-06-13 | 1997-01-23 | Duss Maschf | Drehschlagbohrer für ein von Hand führbares Bohrgerät |
-
1974
- 1974-05-15 DE DE19742423510 patent/DE2423510A1/de active Pending
-
1975
- 1975-05-07 FR FR7514305A patent/FR2271000A1/fr not_active Withdrawn
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2412392A1 (fr) * | 1977-12-21 | 1979-07-20 | Krupp Gmbh | Fleuret a roches |
EP0036847A2 (fr) * | 1980-03-26 | 1981-09-30 | Sandvik Aktiebolag | Outil de forage |
EP0036847A3 (en) * | 1980-03-26 | 1981-11-25 | Sandvik Aktiebolag | Drill tool |
GB2431127A (en) * | 2005-10-08 | 2007-04-18 | Milwaukee Electric Tool Corp | Drill bit with removable cutting elements |
GB2431127B (en) * | 2005-10-08 | 2010-05-05 | Milwaukee Electric Tool Corp | Replaceable tip for a bit or auger bit |
US7909547B2 (en) | 2005-10-08 | 2011-03-22 | Milwaukee Electric Tool Corporation | Replaceable tip for a bit or auger bit |
US8109700B2 (en) | 2005-10-08 | 2012-02-07 | Milwaukee Electric Tool Corporation | Replaceable tip for a bit or auger bit |
US9339874B2 (en) | 2006-03-02 | 2016-05-17 | Milwaukee Electric Tool Corporation | Cutting tool |
US10618119B2 (en) | 2006-03-02 | 2020-04-14 | Milwaukee Electric Tool Corporation | Cutting tool |
GB2479146A (en) * | 2010-03-30 | 2011-10-05 | Paul James Bentley | Hole cutter |
US9500038B2 (en) | 2013-02-01 | 2016-11-22 | Milwaukee Electric Tool Corporation | Auger bit with replaceable cutting bit |
Also Published As
Publication number | Publication date |
---|---|
DE2423510A1 (de) | 1975-11-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |