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Taperedtools 11 degree

11 degree cross-type bit tapered rock drilling tools

drill bit Top hummer rock drilling tools

Adavantage :
1. High fatiue strength and tougness. 
2.The crushing ability is strong, the rock drilling speed is fast, and it is convenient for grinding. 
Application:Mines, tunnels, water conservancy
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Description
1221-291122-12/8-42-22
1221-301122-12/8-42-22
1221-321122-12/8-42-22
1221-331122-12/8-42-22
1221-351122-12/8-42-22
1221-361122-12/8-42-22
1221-381122-12/8-42-22
1221-411122-14/8-42-22
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