JPS6196613U

JPS6196613U -

Info

Publication number: JPS6196613U
Application number: JP18078884U
Authority: JP
Priority date: 1984-11-30
Filing date: 1984-11-30
Publication date: 1986-06-21

Description

[Brief explanation of drawings]

第１図、第３図、第６図は縦断面図を示す。第
４図は正面図、第２図、第５図は下面図。 1, 3, and 6 show longitudinal cross-sectional views. FIG. 4 is a front view, and FIGS. 2 and 5 are bottom views.

Claims

[Claims for Utility Model Registration] 1. A hole cutter is provided with a plurality of knockout pins that penetrate through and push out from the upper hole of the cutting edge of the hole cutter. A hole cutter that is pushed down by a female screw and has the function of eliminating cutting debris that adheres to the inside of the cutting blade of the hole cutter. 2. A hole cutter according to claim 1 of the utility model registration claim, in which the knockout pin portion is attracted by a magnet on the upper part, so that when the knockout pin is not in use, the knockout pin is attracted to the upper part so that it does not interfere with the use of the hole cutter. Tar. 3. A unit that makes a notch in the cutting blade and pushes out cutting waste having a plurality of projections on the inside of the cutting blade,
A hole cutter according to claim 1, in which this unit is brought into close contact with the back of the cutting blade by means of a magnet. 4 It has an elastic body such as a spring that fits into the fitting part at the tip of the shaft, and the structure is such that the tip of this spring comes out of the cutting blade, so that when chips are separated, the force of this spring will cut the chips. A hole cutter according to claim 1, which is a utility model and has a function of pushing out cutting chips embedded in the blade.