RY DIAMOND DRILL BITS FOR PORCELAIN GRANITE TILE GLASS CERAMICS MARBLE 6mm-14mm FEATURES: The dry diamond drill bit uses vacuum brazed technology which allows the dry bit to be used at a higher temperature to cut through hard porcelain tile, ceramics, marble and slate with ease. The integrated lubrivant aids cooling and prolongs life, which means there is no requirement for additional lubricant. Vaccum Brazed Diamond drilling bits, Dry drilling granite & marble, masonry, concrete, tile/ceramic, glass, hard plastic..... Integrated lubricant, aids cooling and prolongs life, which means there is no requirement for additional lubricant. Hexagonal Shank, prevents slippage in the chuck. Laser etched, diameter on body for ease of identification. SPECIFICATION: Hole Diameter Head External Dia. Head Length Total length Hex Shank Diameter Grit Color 6mm ( 1/4"") 6mm 32mm (1-1/4"") 67mm(2-5/8"") 10mm (3/8"") 60 Coarse Black 8mm ( 5/16"") 8mm 39mm (1-9/16"") 80mm(3-5/32"") 10mm (3/8"") 60 Coarse Black 10mm ( 3/8"") 10mm 40mm (1-9/16"") 80mm(3-5/32"") 10mm (3/8"") 60 Coarse Black 12mm (15/32"") 12mm 40mm (1-9/16"") 80mm(3-5/32"") 10mm (3/8"") 60 Coarse Black 14mm ( 9/16"") 14mm 40mm (1-9/16"") 80mm(3-5/32"") 10mm (3/8"") 60 Coarse Black PACKAGE INCLUDES: 1 X Dry Diamond Drill Bit Quick Tips 1.Start drill at 45 Degree to surface and align to 90 Degree as hole forms 2.Never use drills while machine is in hammer action. 3.Holes Require No Further Work As Cutting Is Clean