Coupling sleeves, other name is Coupling, when using rock drills with male shank adapters and a conventional drifter rod, a coupling is requir...
HSS Drill Bit with Weldon Shank (DNHX)1. HSS hole cutter, Weldon shank, with more stable clamping for stable cutting and finish of holes. 2. Additio...
HSS Step Drill Bitsstraight flute 3flat shankStep Drill Bits are perfect for drilling multiple-size holes in thin sections of metal, plastic and wood using...
Polycrystalline diamond compactCommon size: 803/908/1308/1313/1608/1613/1616/1908/1913/1916/1919Usage:1. For oil drilling2. For coal drilling3. For hard ma...