R28 Diameter 43mm 7 Buttons Thread Button Bits For Quarry Granite Rock

R28 Diameter 43mm 7 buttons Thread Button Bits For Quarry Granite Rock Bits

Specification of the drill bits:

• Thread: R28

• Diameter:43mm

• Gauge Buttons: 5*9.5mm

• Front Buttons: 2*8mm

• Skirt Design: Standard

• Weight: 0.68KGS

• Skirt Design: Standard

• ​Carbide Design: Ballistic

• ​Face Design: Flat

Advantages:
1.Entire CNC processing procedure ensure the quality consistency

2.Military grade requirements of heat-treatment guarantee durability

3.Fast penetration rates, and straight and clean hole quality. Long life of drilling holes.

We have a professional team who focus on customer service. So just let us know your idea or usage, and then we can provide the drawing to you for confirmation.

by which the drilling bits body will hold the carbide buttons so tightly that reduce the risk of buttons’ dropping out of the holes.
In order to better resist the abrasiveness of rock, spherical shape will be a good option for the carbide if high speed is not a necessity.

Main Diameter 40mm, 41mm, 43mm, 45mm.

Carbide shape: Dome, Ballistic , Semi-Ballistic,

Skirt body : Standard

drifting drill rod<span microsoft="" yahei";="" font-size:="" 14px;"="" font-size:14px;"="" style="box-sizing: border-box; margin: 0px; padding: 0px; overflow-wrap: break-word; font-family: Arial; font-size: 14px;">Drift rod size : R32-R28-H28 2600mm, 3100mm

Rock Drill Bits: R Has good wear properties
• It is available in sizes 38 mm40mm, 41mm, 43mm, 45mm.

R28 Threaded Drill Bits for Drifting and Tunneling