CRL 100X Grit Silicon Carbide Grain Quantity:10 It holds straight shank diamond

It holds straight shank diamond drills in it's jaws

Slips Comfortably into Shirt Pocket or Briefcase

Allows 3/8" (10 mm) Straight Shank Drills to be Used in Production Drilling Machines with a Mathey-Belgian Mount Water Chuck

Interchangeable Heads

dark bronze anodized

CRL 100X Grit Silicon Carbide Grain Quantity:10 It holds straight shank diamondFor Use with Brass and Steel Tube Drills Easy to Use Use on Roughening Plates for Grinding and Polishing Use CRL Silicon Carbide Grain for almost any glass drilling need. Most commonly used with CRL Steel and Brass Tube Drills, the abrasive action of the silicon carbide is applied by the rotation of the tube drill. The slots in the drill pick up the grain, which causes the glass to wear. Can be used to drill holes for speak tube applications or