4" DTH bits

Teamwhole take pride in being the only manufacturers in China that have a diverse line of DTH bit that range from 3" to 47"(76mm-1200mm) in diameter with most the leading hammer shanks.

Made from high quality alloy steel and advanced heat-treatment,Teamwhole bits are ensureed extreme protection against wear and fatigue.They're also available in four different bit head face designs,include Flat,Concave,Convex and Drop Center.And two different carbide shapes,spherical and ballistic to tackle any challenge and rock formations.

APPLICATION

For mininig,quarry blasting hole borehole drilling

For water well,depep hole well,oil and gas open hole drilling

For mininig,quarry blasting hole borehole drilling

Face design and carbide button shape

Concave Face All kinds of rock formation，especially homogenous formation	Flat Face Very hard and abrasive rock formation	Convex Face Soft-medium hard rock formation

Carbides buttons shape

Spherical	Ballistic

Main Model--Examples for TH4(DHD340) bit(Flat spherical)

Other design of face and inserts are available