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Open-closed Drill Bit

Usage

With this drill bit, the sieve tube can be run into the drill rod rapidly, which improves the gas extraction effect and solves the problem of blocked gas extraction in the soft outburst coal seam and fractured formation.

Product Parameters

Open-closed Drill Bit

201B0111-0002-A

φ118/53 Open-closed Drill Bit

201B0111-0005-A

Φ98 Open-closed Drill Bit

201B0302-0001-A

Φ118/53 Open-closed Drill Bit

201B0111-0003-A

Φ96 bore open-closed directional drill bit

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