Product Name: Diamond Core Drills for All Kinds of Stones Usage: Stone Cutting Material: Diamond Type: Core Drill Bit Customized: Customized Kind: Stone Sawing Machine Manufacturing Arts: Welding Trademark: FANXI Transport Package: Paper Box, Plastic Case etc. Specification: 22-162mm Origin: P. R. China HS Code: 8207191000 Product Description Diamond core drills for all kinds of stonesCore drills are made of superior materials and produced by hot pressed technology. They are widely used for making holes in concrete, refractory marble and granite.Specification and Size of Diamond Core Drill BitOuter DiameterArbor SizeSegmentSegmentInchesMetric(MM)InchesMetric(MM)DimensionNumber0.87"2213.78"35010× 3× 8/1031.10"2813.78"35015× 3× 8/1031.26"326.69"17015× 3× 8/1031.5"386.69"17015× 3/3.5× 8/1041.89"486.69"17015× 3/3.5× 8/1042.05"526.69"17015× 3/3.5× 8/1042.56"656.69"17015× 3/3.5× 8/1043.07"786.69"17015× 3/3.5× 8/1053.58"916.69"17015× 3/3.5× 8/1054.21"1076.69"17015× 3/3.5× 8/1064.61"1176.69"17015× 3/3.5× 8/1065"1276.69"17015× 3/3.5× 8/1085.98"1526.69"17015× 3/3.5× 8/10106.38"1626.69"17015× 3/3.5× 8/1014