Description

ST58 Thread button bits

ST58Threaded Button Bitsare the most important size for benching and long hole drilling underground, this type of rock drill bits manufactured byrock drilling tools factorySUPERDRILL.

Specification of ST58 Drill Bits , kindly check below:

Diameter: 89mm, 93mm, 102mm, 115mm, 127mm

Skirt Body: retrac, and normal, straightrac

Face type: flat, uniface, drop center

Carbide Design: Dome, ballistic, semi-ballistic

Used in Bench drilling, underground long hole drilling

To matchextension MF rod, MM rod heavy duty top hammer.

Notes:

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