Drifting & Tunneling: R25 (1”)

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Drifting&Tunneling: R25 (1) “may refer to the use of a specific specification (R25) tool or equipment for drifting (horizontal or inclined tunnel excavation) and tunnel excavation operations in mining or tunnel engineering.

Thread button bits made with high quality of best quality alloy steel bar and tungsten carbides, through heat treatment so that it can withstand the toughest rock drilling demands, and transmit intensive impact energy into the rock with the least possible loss of energy.

Button bit

Drill rod

Coupling