7 degree taper rock bits 7 DEGREE bullet button bits

The top hammer rock drilling tools tapered button bits are widely applicable to mining industry, tunneling and underground engineering, open pit, construction drill, blast industry, civil engineering operations, road, gas line, pipe and trench projects, quarry work, rock anchoring and ground stabilization projects, water well industry, etc.

Taper Degree: 6°, 7°, 11°, 12°

Diameter: 30mm, 32mm, 33mm, 34mm, 36mm, 38mm, 40mm, 41mm, 42mm

Buttons: 4, 5, 6, 7, 8

Flushing Water Hole Nos.: 1, 2, 3

Skirt: Short, Long

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Liaocheng Jinquan Construction Machinery Co.,Ltd - China manufacturer of rock drilling tools button bits top hammer rock tools DTH hammer button bits