Bonmach is one of the leader 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 customized the DTH rock drill button bit upon request. 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 performance of stronger button-fixing ability, better ware-resistance and impact-resistance, high drilling speed and long service life.