Down the hole Convex Face Drill Bit – 4 Inch

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Down the hole Convex Face Drill Bit - 4 Inch

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Carbide Insert Shape: No selection

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Size (in): No selection

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Shank Support: No selection

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Description
Accessories
Specifications

The Convex Face DTH Drill Bit is engineered for superior performance in medium to hard rock formations. Featuring a slightly domed (convex) face profile, this bit design ensures excellent hole straightness, fast penetration rates, and balanced wear. Optimized air flushing channels efficiently clear rock cuttings, reduce regrinding, and enhance bit life.Each bit is precision-machined to match the corresponding DTH hammer shank, providing a secure fit and maximum energy transfer from the hammer to the bit.

Design:

Convex Face Profile: Improves hole alignment and stability while reducing deviation in hard rock drilling.
Optimized Button Layout: Tungsten carbide buttons are strategically placedcenter buttons for rock breaking, gauge buttons for maintaining hole diameter, and intermediate buttons for balanced cutting.
Efficient Flushing System: Multiple air holes ensure superior cleaning of the hole bottom and cooling of the bit face.
High-Strength Shank Connection: Precisely engineered to fit popular hammer models (QL, DHD, COP, SD, Mission, etc.) for maximum energy efficiency.
Surface-Hardened Body: Heat-treated alloy steel provides exceptional toughness, fatigue resistance, and extended service life.

Applications:Designed for medium to hard rock formations, Convex Face DTH Bits are ideal for:

Mining and quarrying operations
Water well and geothermal drilling
Construction and foundation works
Blast hole and exploration drilling

Materials:

Bit Body: Premium alloy steel (e.g., 4140/4340) – High strength, impact resistance, heat-treated for hardness (HRC 3545)
Carbide Inserts: Tungsten carbide (WC-Co) – Exceptional wear resistance and durability under impact
Surface Treatment: Nitrided or carburized finish – Enhanced hardness and fatigue resistance
Protective Coating: Black oxide or anti-corrosion coating – Rust protection and improved longevity

Specifications

	DTHB-BALL-DHD35(4-0)CNVX	DTHB-BALL-MD35(4-0)CNVX	DTHB-DOME-DHD35(4-0)CNVX	DTHB-DOME-MD35(4-0)CNVX	DTHB-BALL-DHD340(4-1/2)CNVX	DTHB-BALL-MD4(4-1/2)CNVX	DTHB-BALL-MP40(4-1/2)CNVX	DTHB-BALL-MQ40(4-1/2)CNVX	DTHB-BALL-TD40(4-1/2)CNVX	DTHB-DOME-DHD340(4-1/2)CNVX	DTHB-DOME-MD4(4-1/2)CNVX	DTHB-DOME-MP40(4-1/2)CNVX	DTHB-DOME-MQ40(4-1/2)CNVX	DTHB-DOME-TD40(4-1/2)CNVX	DTHB-BALL-DHD340(4-1/4)CNVX	DTHB-DOME-DHD340(4-1/4)CNVX	DTHB-BALL-DHD340(4-3/4)CNVX	DTHB-BALL-MD4(4-3/4)CNVX	DTHB-BALL-MP40(4-3/4)CNVX	DTHB-BALL-MQ40(4-3/4)CNVX	DTHB-BALL-TD40(4-3/4)CNVX	DTHB-DOME-DHD340(4-3/4)CNVX	DTHB-DOME-MD4(4-3/4)CNVX	DTHB-DOME-MP40(4-3/4)CNVX	DTHB-DOME-MQ40(4-3/4)CNVX	DTHB-DOME-TD40(4-3/4)CNVX	DTHB-BALL-DHD340(4-1/8)CNVX	DTHB-BALL-DHD35(4-1/8)CNVX	DTHB-BALL-MD35(4-1/8)CNVX	DTHB-DOME-DHD340(4-1/8)CNVX	DTHB-DOME-DHD35(4-1/8)CNVX	DTHB-DOME-MD35(4-1/8)CNVX	DTHB-BALL-DHD340(4-5/8)CNVX	DTHB-BALL-MD4(4-5/8)CNVX	DTHB-BALL-MP40(4-5/8)CNVX	DTHB-BALL-MQ40(4-5/8)CNVX	DTHB-BALL-TD40(4-5/8)CNVX	DTHB-DOME-DHD340(4-5/8)CNVX	DTHB-DOME-MD4(4-5/8)CNVX	DTHB-DOME-MP40(4-5/8)CNVX	DTHB-DOME-MQ40(4-5/8)CNVX	DTHB-DOME-TD40(4-5/8)CNVX	DTHB-BALL-DHD340(4-7/8)CNVX	DTHB-BALL-MD4(4-7/8)CNVX	DTHB-BALL-MP40(4-7/8)CNVX	DTHB-BALL-MQ40(4-7/8)CNVX	DTHB-BALL-TD40(4-7/8)CNVX	DTHB-DOME-DHD340(4-7/8)CNVX	DTHB-DOME-MD4(4-7/8)CNVX	DTHB-DOME-MP40(4-7/8)CNVX	DTHB-DOME-MQ40(4-7/8)CNVX	DTHB-DOME-TD40(4-7/8)CNVX
SKU	DTHB-BALL-DHD35(4-0)CNVX	DTHB-BALL-MD35(4-0)CNVX	DTHB-DOME-DHD35(4-0)CNVX	DTHB-DOME-MD35(4-0)CNVX	DTHB-BALL-DHD340(4-1/2)CNVX	DTHB-BALL-MD4(4-1/2)CNVX	DTHB-BALL-MP40(4-1/2)CNVX	DTHB-BALL-MQ40(4-1/2)CNVX	DTHB-BALL-TD40(4-1/2)CNVX	DTHB-DOME-DHD340(4-1/2)CNVX	DTHB-DOME-MD4(4-1/2)CNVX	DTHB-DOME-MP40(4-1/2)CNVX	DTHB-DOME-MQ40(4-1/2)CNVX	DTHB-DOME-TD40(4-1/2)CNVX	DTHB-BALL-DHD340(4-1/4)CNVX	DTHB-DOME-DHD340(4-1/4)CNVX	DTHB-BALL-DHD340(4-3/4)CNVX	DTHB-BALL-MD4(4-3/4)CNVX	DTHB-BALL-MP40(4-3/4)CNVX	DTHB-BALL-MQ40(4-3/4)CNVX	DTHB-BALL-TD40(4-3/4)CNVX	DTHB-DOME-DHD340(4-3/4)CNVX	DTHB-DOME-MD4(4-3/4)CNVX	DTHB-DOME-MP40(4-3/4)CNVX	DTHB-DOME-MQ40(4-3/4)CNVX	DTHB-DOME-TD40(4-3/4)CNVX	DTHB-BALL-DHD340(4-1/8)CNVX	DTHB-BALL-DHD35(4-1/8)CNVX	DTHB-BALL-MD35(4-1/8)CNVX	DTHB-DOME-DHD340(4-1/8)CNVX	DTHB-DOME-DHD35(4-1/8)CNVX	DTHB-DOME-MD35(4-1/8)CNVX	DTHB-BALL-DHD340(4-5/8)CNVX	DTHB-BALL-MD4(4-5/8)CNVX	DTHB-BALL-MP40(4-5/8)CNVX	DTHB-BALL-MQ40(4-5/8)CNVX	DTHB-BALL-TD40(4-5/8)CNVX	DTHB-DOME-DHD340(4-5/8)CNVX	DTHB-DOME-MD4(4-5/8)CNVX	DTHB-DOME-MP40(4-5/8)CNVX	DTHB-DOME-MQ40(4-5/8)CNVX	DTHB-DOME-TD40(4-5/8)CNVX	DTHB-BALL-DHD340(4-7/8)CNVX	DTHB-BALL-MD4(4-7/8)CNVX	DTHB-BALL-MP40(4-7/8)CNVX	DTHB-BALL-MQ40(4-7/8)CNVX	DTHB-BALL-TD40(4-7/8)CNVX	DTHB-DOME-DHD340(4-7/8)CNVX	DTHB-DOME-MD4(4-7/8)CNVX	DTHB-DOME-MP40(4-7/8)CNVX	DTHB-DOME-MQ40(4-7/8)CNVX	DTHB-DOME-TD40(4-7/8)CNVX
Product Name	DTH Bit with DHD35 Shank, 4 in Convex Face, and Ballistic Carbide Inserts	DTH Bit with MD35 Shank, 4 in Convex Face, and Ballistic Carbide Inserts	DTH Bit with DHD35 Shank, 4 in Convex Face, and Dome Carbide Inserts	DTH Bit with MD35 Shank, 4 in Convex Face, and Dome Carbide Inserts	DTH Bit with DHD340 Shank, 4-1/2 in Convex Face, and Ballistic Carbide Inserts	DTH Bit with MD4 Shank, 4-1/2 in Convex Face, and Ballistic Carbide Inserts	DTH Bit with MP40 Shank, 4-1/2 in Convex Face, and Ballistic Carbide Inserts	DTH Bit with MQ40 Shank, 4-1/2 in Convex Face, and Ballistic Carbide Inserts	DTH Bit with TD40 Shank, 4-1/2 in Convex Face, and Ballistic Carbide Inserts	DTH Bit with DHD340 Shank, 4-1/2 in Convex Face, and Dome Carbide Inserts	DTH Bit with MD4 Shank, 4-1/2 in Convex Face, and Dome Carbide Inserts	DTH Bit with MP40 Shank, 4-1/2 in Convex Face, and Dome Carbide Inserts	DTH Bit with MQ40 Shank, 4-1/2 in Convex Face, and Dome Carbide Inserts	DTH Bit with TD40 Shank, 4-1/2 in Convex Face, and Dome Carbide Inserts	DTH Bit with DHD340 Shank, 4-1/4 in Convex Face, and Ballistic Carbide Inserts	DTH Bit with DHD340 Shank, 4-1/4 in Convex Face, and Dome Carbide Inserts	DTH Bit with DHD340 Shank, 4-3/4 in Convex Face, and Ballistic Carbide Inserts	DTH Bit with MD4 Shank, 4-3/4 in Convex Face, and Ballistic Carbide Inserts	DTH Bit with MP40 Shank, 4-3/4 in Convex Face, and Ballistic Carbide Inserts	DTH Bit with MQ40 Shank, 4-3/4 in Convex Face, and Ballistic Carbide Inserts	DTH Bit with TD40 Shank, 4-3/4 in Convex Face, and Ballistic Carbide Inserts	DTH Bit with DHD340 Shank, 4-3/4 in Convex Face, and Dome Carbide Inserts	DTH Bit with MD4 Shank, 4-3/4 in Convex Face, and Dome Carbide Inserts	DTH Bit with MP40 Shank, 4-3/4 in Convex Face, and Dome Carbide Inserts	DTH Bit with MQ40 Shank, 4-3/4 in Convex Face, and Dome Carbide Inserts	DTH Bit with TD40 Shank, 4-3/4 in Convex Face, and Dome Carbide Inserts	DTH Bit with DHD340 Shank, 4-1/8 in Convex Face, and Ballistic Carbide Inserts	DTH Bit with DHD35 Shank, 4-1/8 in Convex Face, and Ballistic Carbide Inserts	DTH Bit with MD35 Shank, 4-1/8 in Convex Face, and Ballistic Carbide Inserts	DTH Bit with DHD340 Shank, 4-1/8 in Convex Face, and Dome Carbide Inserts	DTH Bit with DHD35 Shank, 4-1/8 in Convex Face, and Dome Carbide Inserts	DTH Bit with MD35 Shank, 4-1/8 in Convex Face, and Dome Carbide Inserts	DTH Bit with DHD340 Shank, 4-5/8 in Convex Face, and Ballistic Carbide Inserts	DTH Bit with MD4 Shank, 4-5/8 in Convex Face, and Ballistic Carbide Inserts	DTH Bit with MP40 Shank, 4-5/8 in Convex Face, and Ballistic Carbide Inserts	DTH Bit with MQ40 Shank, 4-5/8 in Convex Face, and Ballistic Carbide Inserts	DTH Bit with TD40 Shank, 4-5/8 in Convex Face, and Ballistic Carbide Inserts	DTH Bit with DHD340 Shank, 4-5/8 in Convex Face, and Dome Carbide Inserts	DTH Bit with MD4 Shank, 4-5/8 in Convex Face, and Dome Carbide Inserts	DTH Bit with MP40 Shank, 4-5/8 in Convex Face, and Dome Carbide Inserts	DTH Bit with MQ40 Shank, 4-5/8 in Convex Face, and Dome Carbide Inserts	DTH Bit with TD40 Shank, 4-5/8 in Convex Face, and Dome Carbide Inserts	DTH Bit with DHD340 Shank, 4-7/8 in Convex Face, and Ballistic Carbide Inserts	DTH Bit with MD4 Shank, 4-7/8 in Convex Face, and Ballistic Carbide Inserts	DTH Bit with MP40 Shank, 4-7/8 in Convex Face, and Ballistic Carbide Inserts	DTH Bit with MQ40 Shank, 4-7/8 in Convex Face, and Ballistic Carbide Inserts	DTH Bit with TD40 Shank, 4-7/8 in Convex Face, and Ballistic Carbide Inserts	DTH Bit with DHD340 Shank, 4-7/8 in Convex Face, and Dome Carbide Inserts	DTH Bit with MD4 Shank, 4-7/8 in Convex Face, and Dome Carbide Inserts	DTH Bit with MP40 Shank, 4-7/8 in Convex Face, and Dome Carbide Inserts	DTH Bit with MQ40 Shank, 4-7/8 in Convex Face, and Dome Carbide Inserts	DTH Bit with TD40 Shank, 4-7/8 in Convex Face, and Dome Carbide Inserts
Carbide Insert Shape	Ballistic	Ballistic	Dome	Dome	Ballistic	Ballistic	Ballistic	Ballistic	Ballistic	Dome	Dome	Dome	Dome	Dome	Ballistic	Dome	Ballistic	Ballistic	Ballistic	Ballistic	Ballistic	Dome	Dome	Dome	Dome	Dome	Ballistic	Ballistic	Ballistic	Dome	Dome	Dome	Ballistic	Ballistic	Ballistic	Ballistic	Ballistic	Dome	Dome	Dome	Dome	Dome	Ballistic	Ballistic	Ballistic	Ballistic	Ballistic	Dome	Dome	Dome	Dome	Dome
Size (in)	4	4	4	4	4-1/2	4-1/2	4-1/2	4-1/2	4-1/2	4-1/2	4-1/2	4-1/2	4-1/2	4-1/2	4-1/4	4-1/4	4-3/4	4-3/4	4-3/4	4-3/4	4-3/4	4-3/4	4-3/4	4-3/4	4-3/4	4-3/4	4-1/8	4-1/8	4-1/8	4-1/8	4-1/8	4-1/8	4-5/8	4-5/8	4-5/8	4-5/8	4-5/8	4-5/8	4-5/8	4-5/8	4-5/8	4-5/8	4-7/8	4-7/8	4-7/8	4-7/8	4-7/8	4-7/8	4-7/8	4-7/8	4-7/8	4-7/8
Shank Support	DHD35	MD35	DHD35	MD35	DHD340	MD4	MP40	MQ40	TD40	DHD340	MD4	MP40	MQ40	TD40	DHD340	DHD340	DHD340	MD4	MP40	MQ40	TD40	DHD340	MD4	MP40	MQ40	TD40	DHD340	DHD35	MD35	DHD340	DHD35	MD35	DHD340	MD4	MP40	MQ40	TD40	DHD340	MD4	MP40	MQ40	TD40	DHD340	MD4	MP40	MQ40	TD40	DHD340	MD4	MP40	MQ40	TD40
Face Shape	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex	Convex