Q18-89-ST58-RC-Threaded Button Bit
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.
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.
- 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
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.
ST58-93 Threaded Button Bit
18 Dome/Semi-ballistic carbide inserts ST58 Threaded drill bits with flat face design, 89 mm diameter with extension rod for heavy duty drilling.
A look inside of ST18 threaded button bit.
PDFFor more details please watch PDF online: ST58 Drill Bits for Bench Drilling, Long Hole Drilling Underground Catalogue
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- Diameter: 89mm
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- Face Design: Drop Center
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