Specification :

Features;
1.Diafferent sizes available
2.Tapered drill rods;
3.Raw materials; 55SiMnMo, 95CrMo
4.Taper; 7, 12
5.Length under collar[ mm] ; 610.1220.1830.2000.2435.2740.
3050.3660
.Integral drill roads;
1.Raw materials; 55SiMnMo.95CrMo
2.Shank sizes; H22* 108MM[ 7/ 8* 4-1/ 4] [ H25* 108MM]
3.Length under collar [ mm] ; 400.800.1200.1600.2000.2400.3200.4000.4800
4.Bit diameter [ mm] ; 29.30.31.32.33.34.35.36.37.38.39.40.41.

Shandong Yanggu Rock Drilling Tools Factory

Website: www.qianju.cn

www.ygqj.en.alibaba.com

Email firstclinton@ gmail.com

MSN; xiaomei1011@ live.cn

TEL: 0086-0635-6215089
15969607526
Fax: 00 86-0635-6366988