Water Well DTH Drill Bits BR2 76mm DTH Hammer Drill Bit Customized Color High Strength

BR Series DTH Button Bit 64mm 70mm 76mm 95mm for BR1 BR2 BR3 DTH Hammer

1'' 2'' Middle Air Pressure DTH Bits

DTH Button Bits for BR1, BR2, BR2 Hammer. 

BR Series DTH Button Bit Specification

BR2 76mm DTH Button Bit Photos:

Product: DTH Button Bit

Diameter: 76mm

Bit Shank: BR2 

Face Design: Convex

Button/Carbide Type: Spherical

Button Number and Diameter: 4x10mm front, 6x13mm gauge

Flushing Holes: 2 front flushing holes

Weight: 4.2kg per piece

Color: Green

More Photos:

Bit Face Shape Selection:

Center Drop Bit:

For high penetration rates in soft to medium hard and fissured rock formations. Low to medium air pressure.

Maximum hole deviation control.

Concave Face

The all-around application bit face specifically for medium hard and homogenerous rock formations.

Good hole deviation control and good flushing capacity.

Convex Face

For high penetration rates in soft to medium-hard with low to medium air pressure. It is the most resistance to steel wash, any may reduce the load and wear on gauge buttons, but poor hole deviation control.

Double Gauge Face

This kind of face shape is suitable for fast penetration rates in medium to hard rock formations. Designed for high air pressure and good resistance to steel wash step gauge bit.

Flat Face Bit

This kind of face shape is suitable for hard to very hard and abrasive rock formation is applications with high air pressure. Good penetration rates and resistance to steel wash.

KSQ Related DTH Button Bits

In DTH drilling, the rock drilling bit is a continuation of the shank, which the rock drill piston strikes directly. Since the piston is in direct contact with the drill bit, little energy is lost. This gives DTH drilling a nearly constant penetration rate regardless of hole length.