Product Description
- Carbide Spear Point With Uniquely Sharpened Edges For Easy Penetration In Glass, Mirrors, Ceramics And Other Hard Brittle Materials Like Stucco
- Cuts Perfectly Round Holes Without Chipping Or Breaking The Material
- All Sizes 3/16-Inch And Larger Have 3 Flats On The Shaft To Prevent Slipping In The Drill Chuck