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ST58 retractable drill bit retrac body rock drill bit for mining
drilling
Application:
The Retrac Bits are widely applicable to mining industry, tunneling and underground engineering, open pit, construction drill, blast industry, civil engineering operations,
road, gas line, pipe and trench projects, quarry work, rock anchoring and ground stabilization projects, water well industry, etc,.
89mm 102mm 115mm Retrac button bit ST58
This type design can get better hole deviation control while drilling, it can get bit back easily while the bit is jammed during drilling.
Face Type | Flat face | General purpose bit Suited for medium to hard rock |
Drop conter | Straight hole application Suited for medium to hard rock | |
New drop center | Straight hole application Suited for medium to hard rock |
89mm 102mm 115mm Retrac button bit ST58
Button type | Spherical button | Universal button Wearing resistance good Best suited to hard ground 27,000~48,000 PSI (180 to 320 Mpa) Abrasive to very abrasive |
Hemispherical button | Universal button Wearing resistance good Best suited to hard ground 25,000~45,000 PSI (170 to 300 Mpa) Abrasive to very abrasive | |
Parabolic button | Universal button Fast penetration Best suited to medium to hard rock 15,000~25,000 PSI (100 to 170 Mpa) Midly abrasive ground | |
Conical button | Fast penetration Best suited to smaller diameter bits Suited for all non-abrasive ground types | |
Ballistic button | Fast penetration Best suited to soft rock 10,000~20,000 PSI (70 to 140 MPa) Non abrasive ground |
About us
MIROC® Rock Drilling Tools are Rock Drilling Tools Brand by KSQ
Tecnologies (Beijing) Co. Ltd.
KSQ Technologies (Beijing) Co. Ltd. provides exceptional technical
know-how in development, production, and application. The company
has adopted advanced manufacturing processes to ensure high quality
steels and tungsten carbide inserts for its rock drilling
accessories. Its personnel understand clients’ drilling needs, and
have the service skills to recommend the right drilling tools for
the job. Its experienced product developers can also create custom
tools. Furthermore, the company’s development team introduces
innovative products each year – tools that are rigorously tested in
the field and proven
to perform beyond industry expectations.
MIROC® Rock Drilling and Ground Support Tools include:
Integral Rods
Plug Hole Rods
Tapered Drilling Tools
Extension Drilling Tools
Drifting and Tunneling Tools
Reaming Tools
Shank Rods
Shank Adapters (Striking Bars)
Down-the-hole (DTH) Bits
Down-the-hole (DTH) Hammers