Bimetal hole opener

M42 bimetallic hole using method

1. The coolant is properly added to protect the edge from cracking during use of the hole breaker

2. Opening iron plate more than 5MM, first open about 1MM deeper and more convenient to discharge iron filings

3. The cutting material must be fixed, can not move, it should be 90° right angle with the opening

4. When the drill is drilled through, the drill needs to be drilled slowly. Do not use too much force when disassembling the screws.

5. In the course of operation, if there is any abnormality, please stop working, and then work after cutting down

6 processing more than 10MM thickness, please remove the positioning drill on the spring