QL80 DTH drill bits with high durability and long service life

High Air pressure DTH hammer Drill Button Air Bits for sale

Bit Dia.for choice: ø155, ø159, ø165, ø178, ø190, ø203 mm

Spline: 10

Bit Head Design and selection:
1. Flat front Spherical
Application: For Drilling in hard and abrasive rock.
2. Flat front Spherical + Ballistic
Application: For Drilling in medium-hard to hard and moderately abrasive rock.
3. Convex front Spherical + Ballistic
Application: For drilling in medium-hard and moderately abrasive rock.
4. Convex front Ballistic
Application: For drilling at high penetration rates in nonabrasive rock.
5. Concave front Spherical
Application: For drilling in medium-hard, minimum hole deviation control.