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Busch 4203 4 Groove Carbide Twist Drills on 3/32" Shanks .70mm-1.60mm - Kit of 10

Part # B128.719
Original price $229.00 - Original price $229.00
Original price
$229.00 - $229.00
Current price $229.00

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Product Details

The 4 groove design of these special 3/32" mounted carbide twist drills works best with softer materials, so these carbide drills are recommended for cutting coral and pearls. These drills will last the longest when used in a drill press, as like any drill, breakage will occur with excess leverage or canting. If using by free-hand, the recommended speed is 5,000 to 9000 rpm, and the use of a starting guide hole will help. For use in a press, the recommended speed is from 8,000 to 14,000 rpm. Not for use with glass, ceramics and gem stones.

4 Groove-Recommended for softer materials like Coral and Pearls-Outstanding Service Life

Kit of 10 includes:
  • B128.707  0.70mm
  • B128.708  0.80mm
  • B128.709  0.90mm
  • B128.710  1.00mm
  • B128.711  1.10mm
  • B128.712  1.20mm
  • B128.713  1.30mm
  • B128.714  1.40mm
  • B128.715  1.50mm
  • B128.716  1.60mm

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