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

Features:1) Tapered connection: 4o, 6o, 7o2) Alloy steel3) Suitable carbide tips4) Chisel bit diameter: 20-50mmPacking:Wooden box or plastic box

Features:1) Tapered connection: 4o, 6o, 7o2) Alloy steel3) Suitable carbide tips4) Chisel bit diameter: 20-50mmPacking:Wooden box or plastic box

Features:1) The best alloy steel and tungsten carbide tips2) Using the best copper welding3) Special heat treatments4) These coal round pick cutter bits are suitable replacements for"Kennametal&q