Retrac Threaded Button Bit Diameter T38 76mm for
Gauge Buttons: 6pcs diameter:Ø13mm. Front Buttons: 4pcs diameter:Ø11mm. For benching and long-hole drilling underground, T38-76mm thread button bit is the important drill bit. 10 Dome carbide inserts T38 threaded drill bit with flat face,76mm diameter, straightrac skirt body to match extensio rods for bench drilling, underground long hole drilling.
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