R32 threaded M/F drill rods are produced with round sections in all common thread designs, and in Male/Female (M/F) connections. All of our Jinquan's extension drill rods are heat-treated with carburization or high frequency, bombinated with phonemicization.
R32 64mm thread button bits are manufactured from high quality alloy steel and premium tungsten carbide buttons, via heat-treatment to provide highest penetration rate and longest lifespan at roughest rock condition.
1) Diameter: 48mm, 51mm, 57mm, 64mm, 70mm, 76mm.
2) Material: 45CrNiMoV,YK05.
3) Advanced heat treatment technology.
4) Variety carbide tips suitable for different rock formations.