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
MSN;xiaomei1011@live.cn
TEL:0086-0635-6215089
15969607526
Fax:0086-0635-6366988