156mm 3 1/2 Ar Three Wings Step Drag Dril Bits

Product Introduction
Drag bit is a commonly used tool in workover operations. It is used to drill cement plug, punch sand bridge, salt bridge, scrape dirt and hard wax from casing wall and crystallize some minerals. It can also scrape the borehole to make the borehole wall clean and tidy. It can be used in liner drilling, sidetracking drilling (which can destroy the keyway formed during sidetracking) or drilling and grinding the perforation shell cushion. Under the action of drilling pressure, the bottom is fed into the drilled material such as cement, and then rotated to make the Fed part cut in the circumferential direction, gradually drilling the drilled material. Side will be grinded and milled by the drill, cylindrical space, better repair the drilled hole.

Technical Parameters 
Product Features
1.Design of super-large outlet, smooth outlet, no blockage, no drilling and no washing
2.Utonomous design of threads to suit all drill pipe interfaces
3.Repeated grinding, repeated chemical treatment, dust-free welding composite
4.Use high grade carbide inserts only
5.The wings are thickened
6.bits' body and wings are integrated casting instead of welding them together ;

Company introduction
1. Our factory has been specialized in manufacturing drilling tools and spare parts for over 10 years.
2. We have advanced technology and equipment.
3. Our technician has more than 13 year's professional working experience.

Delivery & Package
Delivery: By air, By sea or By express
Package: Ply-wooden cases + Pallet

Detailed Image