Product Details

Ingersoll rand drilling bits

Features and Advantages:

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

Made from high quality alloy steel and advanced heat-treatment, our bits are ensured extreme protection against wear and fatigue. They're also available in four different bit-head designs - Convex, Flat, Concave and Drop center face, and four different inserts-Spherical,Ballistic,Semi-ballistic,Two-Step to tackle any challenge and rock formations.

Type	Application
Flat Face	Very hard and abrasive rock formation.
Concave Face	All kinds of rock formation, especially for medium-hard and homogeneous formation.
Convex Face	Soft to medium-hard
Drop Center Bit	Soft to medium-hard and fissured rock formation

Carbide Button Shape Selection:

Spherical Semi-ballistic ballistic Conical button

Examples for DHD112 bit (Drop Center,Spherical)

Other designs of faces and inserts are available:

Bit Dia.(mm)	Qty.× Button Dia.(mm)			Qty.Air Holes	Weight (kg)
Bit Dia.(mm)	Outer	Front	Back	Qty.Air Holes	Weight (kg)
311	15×18	15×18+15×16	12×12	3	140
315	18×18	9×18+15×18+9×16	9×16	3	145
320	18×18	9×18+15×18+9×16	9×16	3	190
333	18×19	9×18+15×18+14×16	6×12+6×16	3	200
350	15×19	9×19+15×19+15×16	12×12	3	210
380	18×18	12×18+18×18+21×16	9×14	3	235
400	18×19	12×19+18×19+29×16	12×12	3	245
*420	18×19	12×19+18×19+30×16	12×12	3	260
*445	18×19	12×19+21×19+34×16	54×12	3	275
*508	24×19	15×19+48×19+29×16	6×14	3	350