retrac button drill bit

Brand:aa

Product detail:

Specification of retrac button drill bit

1) Retrac button drill bits are made with best quality alloy steel bar and tungsten carbide buttons, through special heat treatment. 

2) Retrac button drill bits are suitable for all kinds of rock—Soft rock, loose-medium rock, hard rock and any other special formations.

3) Retrac button drill bits are divided into planar and concave heart-shaped, easy return type, easy to return to the concave heart-type. 

4) Our retrac button drill bits are exporting to Middle East, South Africa, Europe, South Asia, Southeast Asia, etc.

 

 

Feature of retrac button drill bit

(1) Type: retrac button drill bit

(2) Diameter:  51, 64, 76, 89, 102mm
(3) Bit design: flat retrac, drop center retrac

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

(5) Package: in wooden case or in carton

(6) Productivity: 20000pcs/ month

 

 

Parameter of retrac button drill bit

 

 

Quick details of retrac button drill bit

All thread bits are available in various flushing hole configuration.

In general, the rule is that Semispherical type bit design are applied to very hard rock. Ballistic type to medium hard and 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.
Flat front/retrac	To be used in the same applications as flat/front/spherical buttons/standard skirt when you also create hole.

 

 

 Pictures of retrac button drill bit