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Litian Heavy Industry Machinery Co., Ltd
Litian Heavy Industry Machinery Co., Ltd
R28 Threaded Button Bit
R28 Threaded Button Bit

R28 Threaded Button Bit

Specification of R28 Threaded Button Bit

DiameterButtonsFlushing HoleWeightModel No.

[mm]
[in]		Gauge
[No.] × [mm]		Front
[No.] × [mm]		Side
[No.]		Front
[No.]
[kg]
441 47/64"4 × 102 × 9110.6R28-446ZCP
451 3/4"4 × 102 × 9110.7R28-456ZCP
481 7/8"4 × 112 × 9110.7R28-486ZCP



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Small Hole Drilling Tools
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TBM Disc Cutter
Single Disc Cutter Double Disc Cutter Twin Disc Cutter Triple Disc Cutter Disc Cutter Ring Disc Cutter Components
Soft Ground Cutter
Raise Boring Cutters
Kerf Roller Cutter
Random Roller Cutter
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Litian Updates
Best Practices for Button Bit Maintenance and Regrinding in Hard Rock Drilling
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Litian Updates
May 11-2026
Button Bit vs Reamer Bit: Choosing the Right Tool for Efficient Rock Drilling
In rock drilling operations across mining, quarrying, tunneling, and construction, selecting the right drilling tool can mean the difference between hitting production targets and missing them.
Apr 25-2026
Best Practices for Button Bit Maintenance and Regrinding in Hard Rock Drilling
Hard rock drilling places extreme demands on button bits. In abrasive granite, quartzite, or basalt formations, the combination of high impact, abrasion, and thermal stress can quickly degrade perform...
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Best Drilling Tools for Underground Tunneling Projects
Litian Rock Drilling Tools Manufacturers

Litian is a professional manufacturer focused on the production of rock drilling tools and excavation tools.

Learn More >
Products
Top Hammer Drilling Tools
Button Bit Drill Rod Shank Adapter Coupling Sleeve Small Hole Drilling Tools
TBM Cutter
TBM Disc Cutter Soft Ground Cutter
Raise Boring Cutters
Kerf Roller Cutter Random Roller Cutter
Hot Sales
Application
Mining Tunneling & Underground Project Construction Drill And Blast Quarrying & Aggregate Hydropower Project

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Tel:
＋86 18080948772
Address:
No. 6, Tongxin Road, Dayushan Pump Industry Park, Huludao, Liaoning Province, China
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