Specifications

1.Rock Drill Rod Manufacturer
2.15 years supply rock drill rod
3.exported to 50 countries in the world
pertitive price

Tapered Rock drill Rod (Rod 19mm, 22mm, 25mm; Shank hex, 19mm, 22mm)

Features:

1) Different sizes available

2) Tapered drill rods:

a) Raw materials: 55 SiMnMo, 95 CrMo

b) Shank size: H22 x 108mm (7/8 x 4 1/4 )

c) Taper: 6, 7, 11, 12 degree etc.

d) Length under collar (mm): 610, 1220, 1830, 2000, 2435, 2740, 3050, 3660