Hard rock drilling bits size 42mm tungsten carbide taper button bits

Products brief introduction 

Type: Q442-723(supply various size)

Material: tungsten carbide 

 ISO9001

It's widely using in mine ,tunnels, quarries and other exploitation projects.

High working efficiency,it has a fast drilling speed, and do not need grinding.

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specification of Hard rock drilling bits size 42mm tungsten carbide taper button bits