Best drill bit for granite rock

Product Item：005

Thread type:R25,R28,R32,R38,T38,T45,T51,ST58,ST68,GT60

Diameter:33mm-152mm

Button bit shape:Spherical and Ballistic

Face shape:Flat shape and Drop-center shape

Category：Thread Button bits

Description

Best drill bit for granite rock

We are a professional rock tool manufacturer. We have useful thread button bits that can be used specifically for granite. The models of our Thread Button bits are

A comprehensive range of various button bits shown as below:

Thread type: R25,R28,R32,R35,R38,T38,T45,T51,ST58,ST60,GT60

Head diameters: 33mm ~ 152mm

Face designs; flat face,

Material: 45CrNiMoV or 42CrMo

Carbide shape: Dome, Ballistic , Semi-Ballistic,

Skirt designs: Standard

Application: Drifting and Tunneling

Notes:

Special sizes may be available upon request.

How to order?
Button Bit:Diameter + Thread + Skirt Shape + Face Design + Insert Configuration

Choosing The Right Carbide

The larger the volume of the Carbide, the more aggressive the Bit. The more aggressive Carbides assist movement of the chips away from the face as there is more room for airflow on the face of the Bit. These more aggressive Bits help to break out larger chips, which increases the penetration rate. The greater volume of Carbide can lead to longer Bit life.

Button Shape	Applicatio
Spherical	Spherical Carbides for use in medium to hard rock, with fractured or seamy applications.
Semi-ballistic	Semi-ballistic shaped, more aggressive than the Spherical Carbides, for soft to medium consistent rock.
Ballistic	Bullet shaped, very aggressive fast penetration in soft to medium consistent rock.