our companymainly produce kinds of rock drilling bits and coal mining tools ,also we can produce according the requirement of the custmers .Our products is mainly used in coal mining ,stoning ,road co

Features: 1) All kinds of rock drilling tools for mining, quarry, construction, water well, oilfield and tunneling industries2) Available: a) Chisel bits, cross bits, button bits, "Retrac" b

Features:1) Shank adaptors made by Boart Longyear and other manufacturers2) Suitable for rock drills made by Boart Longyear, Atlas Copco, Bohler,Furukawa, Gardner Denver, Holman, Ingersoll Rand, Joy,

Features: 1) Shank adaptors made by Boart Longyear and other manufacturers2) Suitable for rock drills made by Boart Longyear, Atlas Copco, Bohler, Furukawa, Gardner Denver, Holman, Ingersoll Rand, Joy

Features: 1) Different sizes available2) Tapered drill rods: a) Raw materials: 55 SiMnMo, 95 CrMo b) Shank size: H22 x 108mm (7/8 x 4 1/4 ) c) Taper: 7, 12 d) Length under collar (mm): 610, 1220, 1830

the product is being mainly used in coal mining , metal mining,stoning ,road construction and etc.we produce kinds of rock drilling tools and also we can make as the requirement of the customer specia

Features:1) Tapered connection: 6, 7, 12o2) Threaded connection: R22, R25, R28, R32, R38, T38, T45, T513) Diameter: 30-127mm4) Available types:a) "Retrac" button bitsb) Drop center button bi

Features:1) Tapered connection: 6, 7, 12o2) Threaded connection: R22, R25, R28, R32, R38, T38, T45, T513) Diameter: 30-127mm4) Available types:a) "Retrac" button bitsb) Drop center button bi

Features: 1) Cemented carbide grade 2) Several quality grades available3) Carbon steel: tzp01, tzp10-1, tyt707, tzp30, tyt535, tyt5, tyt14, tyt15, tyt758, tyt535, tzp354) Alloy steel: tyt726, tzp35, t