I have a few large drill bits which have their tips destroyed.
Drinding those in a bench grinder woul be slow and produce a lot of grinding dust.
I will cut off the bad tip instead of grinding it off.
I need a jig to hold the drill bit while cutting the tip off with an angle grinder.
In this video I use:
- Schaublin SV-51 (1955) Milling machine
- Solberga (1975) Drill press
- Kemppi MasterTig MLS 2000 Welding machine
Chapters:
00:00:00 Opening animation
00:00:41 Introduction
00:03:22 Miling support plate for the vice
00:14:25 Drilling and tapping the support plate
00:30:28 Welding the support plate
00:48:31 Building the drill cutting jig
00:51:46 Cutting a drill bit using the jig
00:53:38 Testing the drill bit
00:59:28 Conclusion and end credits
The video is spoken in German but it has good quality hand written subtitles in English, German and Finnish.