Transmit the impacting power and torque of rock drill to bit, the material, processing and heat-treatment are keys of life-span

Taper degree：6°,7°,11°,12°                    
Length：400-8000MM
Socket Diameter：H19，H22，H25 MM
Shank Dimension：83,108,159 MM

Features:

• Made from material as same grade as internationally well-known brand
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• Apply Boring Method processing as same as internationally well-known brand
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• Entire heat-treatment ensuring the excellent quality
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• Accurate dimension of taper degree perfectly matches the bit
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• Very cost-effective

Common sizes of shank：
H19
H22
H25