Specifications
1.Rock Drill Rod Manufacturer2.15 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