Wet tungsten carbide coal mine drill bit

    Coal bits are mainly used in coal and mine drilling, have dry-type & wet-type.

     

Description:

Features: large torque, wide drilling range, easy connection and durable.

 

Parameter

Dimension: 25, 27, 28, 29, 30, 32, 36, 42 mm.

Normal Thread Model: M16*2; M14*1.5, M12*1.75; M14*1.5; M12*1.75

 

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