La présentation de Rock Drilling Tools Drilling Bits and Drilling Rods

Introduction of Rock Drilling Tools Drilling Bits and Drilling Rods

China Coal Group is a leading drilling tools manufacturer in China, We provides full ranges of drilling bits and drilling rods including chisel bit, button bit, cross bit, tapered drill rods, etc.

Chisel Bit

42 chisel bit teeth made of high quality 35 crmo steel, strength and hardness is higher than similar products. Large cold press molding, vacuum heat treatment technique made the 42 chisel bit has 40-45 degrees of hardness, surface oxidation. Pick alloy weld around the full harmony has wear-resisting layer, effectively protecting the metal head is not easy to fall off.

Button Bit

Passivation drill bit using cycle is long, its life is about 5-6 times of the same diameter cutting head drill bit, is conducive to save auxiliary working hours, physical labor and speed project up.<

Cross Bit

Diameter at the scope of D38 - D65m, adaptable for drilling conditions, almost without being limited by the drilling machine and the properties of the rock mass, especially obvious in the high abrasive risistance fracture rock with high hardness.

Tapered Rod

Head is conical, drill after with conical linked drill bit, usually used in drilling project such as reaming and other quarry, coal mine, subgrade construction areas. Taper hole angle normally is 7 °, internationally accepted 12 °, taper hole diameter is regular Ф 25, also can produce Ф 22 or other specifications according to your requirement.

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