drill bit grinder Specifications: GD-13 Drill SizeDia.3 Dia.13mmPoint Angle90° 135°Power SupplySingle phase 110v AC 220vMotorhp 180wR.P.M. of motor5,300rpmDiamond Grinding WheelCBN#200WeightN/W:9.5kgs, G/W: 10kgsPacking dimensionsL x W x H: 31 x 17 x 19cm About Us Who we are: Located in world's manufacture base-Dongguan, we are specializing in produceing machine tool and accessory which have export to many country.We also have other factory in Ningbo and many sales office. What we do:Tool grinder and machine tool accessory. Output 800sets for domestic and abroad market every month.Lauch new product every quarter to keep pace with the change of the market.