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Top Hammer Drill Bit

 Top Hammer Drill Bit

SPM top hammer drill bits are specially designed for hard to very hard and highly abrasive rock formations. The tophammer drilling tools present a fast penetration as well as long service life.

Applications
1. The drill bits are widely used for guide rail type pneumatic rock drilling machinery and hydraulic drill carriages.
2. They are excellent button bits, suitable for drilling anchorage holes for underground mining, blast holes and shaft of mines.
3. The mining drill bits are also an ideal choice for roadway construction, blast holes and anchorage holes drilling applications in large sized underground metal mines.
4. They are commonly found in the construction and excavation sites of railway, highway tunnel, diversion tunnel in hydropower projects and underground workshops.

Technical Parameters of the Top Hammer Drill Bit
Thread Diameter of Drill Bits/mm Parts NO.
Φ54 Φ57 Φ64 Φ70 Φ76 Φ89 Φ102 Φ115 Φ127
T35 SPM54-T35 SPM57-T35
T38 SPM64-T38 SPM70-T38
SPM76-T38 SPM89-T38
T45 SPM76-T45 SPM89-T45
SPM102-T45
T51 SPM89-T51 SPM102-T51
SPM115-T51 SPM127-T51
Product Code: SPM + Head Diameter + T + Thread Nominal Diameter
Example: SPM89-T38
89=Drill bit head diameter(mm); T=Trapezoidal thread (ACME thread); 38=Nominal diameter of thread (mm)