ST58 Retract Threaded Button Bit

ST58 Retract Threaded Button Bit 

Threaded Button Bit     

Q18-89-ST58-RC-Threaded Button Bit 

Code No.: Q18-89-ST58 

Thread: ST58 

Diameter: 89mm 

Gauge Buttons: 9*12mm

Front Buttons: 9*11mm 

Skirt Design: Retrac 

Weight: 5.2KGS 

Carbide Design: Parabolic/Dome

ST58 Threaded Button Bits are the most important size for benching and long hole drilling underground, this type of rock drill bits manufactured by rock drilling tools factory ProDrill.

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 match extension MF rod, MM rod heavy duty top hammer.

Features:

ST-58 thread type is double thread design for easy knock off drill bit, ST-58 means diameter 58 mm with double T shape thread, thread distance 24 mm, this is extra heavy duty drill bit for jump top hammer. Drill rod use guide tube for a match. 

A look inside of ST58 threaded button bit.

ST58 Thread button bits PDF

For more details please watch PDF online:  

ST58 Drill Bits for Bench Drilling, Long Hole Drilling Underground Catalogue