NUMA125 DTH HAMMER BITS, NUMA125 DTH BUTTON BITS, N125 DTH Drill Bits, N125 dth button bits are the same shank with original NUMA125 which replaced easily.

STAROCKDRILL can produce wide range of STR bits,range from 3"-47"(76mm-1200mm)in diameter.These DTH bits shank can cover all of international brand 

like BR,MACH,DHD,COP,IR,NUMA,SD,QL,MISSION etc.

DTH bits are made from high quality alloy steel and advanced heat treatment.STAROCKDRILL brand DTH bits face include concave,flat,drop center,convex etc.

STAROCKDRILL is in the position to offer a comprehensive range of DTH drill bits with all diameters of the current prevailing manufacturers hammer 

shank designs to match various drilling applications. All our DTH drill bits are also CAD designed, CNC manufactured for perfect bits body, 

and multiple heat-treated to enhance hardness, surface-compressed for fatigue resistance, 

all thus to extend the product life for maximum wear and performance in the toughest of drilling conditions. 

Moreover, all these bits are also made from high quality alloy steels and fitted with premium quality tungsten carbide tips for superior penetration rate.

STAROCKDRILL Manufacturing higher quality DTH Bits with N125 shank, which can be designed with customers’ requirements.

Advantages:

1.Faster drilling

2.Save lubrication oil

3.Longer working life

4.Stable drilling speed

5.Replaced Original hammers and bits

6.Completely after sales service

How to order:

DTH BITS: BIT SHANK + DIAMETER 

(We are customizing customer on bit face and button shape)