C31 Series Bullet Teeth For Rotary Drilling
Suitable for drilling in strong/middle/weak weathered rock of foundation piles.
Material: Tungsten carbide: YG11C, HRC88-92 + 35MnB.
Models: C31HD, C21HD.
Suitable for drilling in strong/middle/weak weathered rock of foundation piles.
Material: Tungsten carbide: YG11C, HRC88-92 + 35MnB.
Models: C31HD, C21HD.