3pcs Hex Ti Porcelain Spear Head Ceramic Tile Glass Marble Drill Bits Set 6 8 10mm

Description: This bit for the hard brittle ceramic material,such as glass and so on. It can be used with the ordinary drilling hammer. It must be add coll-ant when it is being used. Specifications: Drill 1: approx 6mm*77mm Drill 2: approx 8mm*82mm Drill 3: approx 10mm*85mm Usage: When drilling the hole,your force should be slow,especially at the beginning of drilling and when it is drilling the glass through. Turn on the right when working speed 400-500. Package included: 3 X Drill Bits