1. Tricone bit cutting structureAdopting new formula of new technology of the high quality hard alloy tooth, enhance the cutting teeth mechanical properties.2. T...
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...
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...