4”High Air Pressure DTH Rock Drill Button Bits
Bonmach is one of the leading manufacturer of DTH bit in China, we produce high-quality DTH bit for rock drill. Our DTH button bits include high air pressure DTH rock drill bit and low air pressure DTH hammer bit. Also, we could customize the DTH rock drill button bit upon request.
DTH rock drill button bits or down the hole button bits are widely used in Hole-forming operation for Metal mine, Open cut mining, Quarry, Tunneling, Water well drilling Large-scale Construction.
We select carbide button material GF20G, GF20B which hardness: 90.3HRA-90.4HRA, and finish forged steel NO.45CrNiMoV with hardness: 45HRC as steel body, adopt hot fitted technology for all our products. Bonmach’s DTH rock drill button bits have the performance of stronger button-fixing ability, better ware-resistance and impact-resistance, high drilling speed and long service life.
BMHD45 DTH HAMMER
How to choose Bit Face shape?
How to choose Carbide button shape?