Powerful Bits for Dth Hammer in Ql80,Dhd380

Powerful DHD, COP, Mission, SD, QL DTH Drill Bits 8''

Product name: High Air Pressure DTH Bits 3''-12''
Details:Matching: DHD, COP, COP Gold, Mission, SD, QL etc.
Bit Diameter: 3 ~ 12 inch (76 ~ 305mm)
Working air pressure: 6 ~ 35 bar (0.6 ~ 3.5 MPa, 87~507 psi)
Button configuration: Spherical, Ballistic
Face design: Flat, Concave, Convex
Color : Yellow, Gold or as required
Button type : YK05, KD10
Manufacturing process : Forging, CNC machining,Heat treatment...
Package: Foam + Carton + Wooden

Bit head design and selection:
Flat Front Spherical Applications: For drilling in hard and abrasive rock
Flat Front Spherical + Ballistic Applications: For drilling in medium-hard to hard and moderately abrasive rock.
Convex Front Spherical + Ballistic Applications: For drilling in medium-hard and moderately abrasive rock.
Convex Front Ballistic Applications: For drilling at high penetration rates in non-abrasive rock.
Concave Front Spherical Applications: For drilling in medium-hard, medium hole deviation control