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:Drill1: approx 6mm*77mmDrill 2:approx 8mm*82mmDrill 3:approx 10mm*85mmUsage: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