Description
These Busch 4205S short carbide twist drills are made for just one application: Drilling precise holes in hard metals for pave diamond setting. Short drills make sense because the holes drilled are relatively shallow and long drills have a tendency to break due to torsional stress.
These short carbide burs are used by the world’s finest micro-diamond setters who set stones for the world’s greatest jewelry brand names. Developed by a partnership between those parties and Busch of Germany, these drills are the perfect solution for once was a drill breaking nightmare.
Use these drills on hard metals such as platinum, high karat white alloys, titanium, steel as well as gold, silver and other alloys. The 2-groove design helps expel material from the hole extending drill life. Recommended speed for use: 3,000-5,000 rpm. Not for use with glass, ceramics or gemstones. These carbide twist drills are sold by the piece. Also available in a kit of 4, see part number BAU128.400.
Choose from 4 sizes:
- BAU128.407 0.70mm
- BAU128.408 0.80mm
- BAU128.409 0.90mm
- BAU128.410 1.00mm
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