twist drill pipe/spiral drill pipes

1.About Us 

We are a professional manufacturer specialized in series of drill tools: PDC, PDC drill bits, diamond drill bits, etc. We can also produce other products according to the customers requirements. We sincerely welcome our friend both home and abroad to come for business talks.

2.introductions and features of twist drill pipe/spiral drill pipes :

1.Spiral drill pipes  Design feature: overlay spiral. It guarantees big torque, quick slagging, and clear hole forming. Besides, the drill bit will hardly get stuck.
Application: soft coal bed, and other formation similar to coal bed.

2.The tapered drill rod is used for rock drilling, blasting holes and other drilling works in the quarries, coal mines, traffic and other constructions.
Generally, the lightduty rock drill uses 7 taper or smaller taper angle, the heavyduty rock drill mainly uses 12 taper angle.

3. twist drill pipe/spiral drill pipes   specifications