Zhenjiang Scharp Machinery Tools Co., Ltd.  

Product Name: Counterbores with Straight Shank and Fixed Pilot Material: High Speed Steel Coating: Uncoated Standard: Standard Application: Drilling Machine Size: M3 to M24 Standards: HRC63 Style: Universal Tool Structure: Integral Cutting Process: Drilling Tools Trademark: stc Transport Package: Plastic Box Specification: size M3 to M24 Origin: Jiangsu HS Code: 82075090 Product Description Material: Efficient high-speed steel HSS M2.Hardness: 63 HRC.Workmanship 4 cutting blades in right hand spiral.Milled flute and ground flute both available.Kinds of sets available.Kinds of coating available.HSS Co5 (M35) available on request.sizepilotcuttershankoveralldiadiadialengthM33.26571M33.46571M3.53.76.5571M44.38571M44.58571M4.54.88871M55.310880M55.510880M66.411880M66.611880M88.41512.5100M891512.5100M1010.51812.5100M10111812.5100M12132012.5100M1213.52012.5100M14152412.5100M14162412.5100M16172612.5100M16182612.5100M18193012.5100M20213312.5125M20223312.5125M2425.44016254