76mm drill bit

Brand:aa

Product detail:

Specification of 76mm drill bit

1. 76mm drill bits mainly be compatible with hydraulic rock rill and hydraulic drilling rod.

 

2. 76mm drill bits are made with best quality alloy steel bar and tungsten carbides, through special heat treatment

 

3. There are different thread types of 76mm drill bits for drilling hole from 32mm to 203mm

 

4. 76mm drill bits are applied in down the hole drilling and exploring open-cut mine

 

5. High quality drilling holes, fast drilling speed, no need regrinding and high working efficiency

 

 

Feature of 76mm drill bit

(1) Type: 76mm drill bit

(2) Diameter: 76mm

(3) Bit design: flat, flat retrac, drop center, drop center retrac

(4) Thread diameter: 32, 38, 45, 51mm

(5) Package: in wooden case or in carton

(6) Productivity: 20000pcs/ month

 

 

Parameter of 76mm drill bit 

 

 

Material of 76mm drill bit 

Item	material
Button bit	Tungsten carbide
Button rock drill bit alloy head	Yk05
Mf rod	22SiMnCrNiZMo and 22CrNi3Mo
Bench drill rod	22SiMnCrNiZMo and 22CrNi3Mo
Shank adapter	30CrNi4Mo and 18CrNi3Mo
Pneumatic picks tools	T10
Extension rod	35SiMnMo
Small hole drilling tools	55SiMnMo and 95CrMo

 

 Quick details of 76mm drill bit

All thread bits are available in various flushing hole configuration. In general, the rule is that:

1. Semi-spherical type bit design are applied to very hard rock

2. Ballistic type to medium hard

3. Conical type to soft rocks.

 

Bit design	Brief Introduction
Drop center	Perfect in abrasive formations where there is accelerated button wear or in medium to hard rock when ballistic buttons have tendency to break.
Drop center/retrac	To be used in medium-hard and fissured rock formations, better hole deviation control.
Flat front	Ideal for medium hard rock when the rock formation causes heavy gauge wear on the bit. Can also used in very hard and abrasive rock formations.

 

 Pictures of 76mm drill bit