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

R28 Retrac Button Bit

Specification of R28 Retrac Button Bit

DiameterButtonsFlushing HoleWeightModel No.

[mm]
[in]		Gauge
[No.] × [mm]		Front
[No.] × [mm]		Side
[No.]		Front
[No.]
[kg]
451 3/4"6 × 93 × 8131R28-459YFP
512"6 × 103 × 9131.35R28-519YFP



Top Hammer Drilling Tools
Button Bit
Threaded Button Bit Retrac Button Bit Reaming Bit
Drill Rod
Extension Rod MF Rod Drifter Rod Drill Tube & Guide Tube
Shank Adapter
Shank Adapter HL/RD/HLX Shank Adapter COP/BBC Shank Adapter HD/PD Shank Adapter HC Shank Adapter YH Shank Adapters Impact Shanks
Coupling Sleeve
Small Hole Drilling Tools
Tapered Button Bits Tapered Drill Rods Integral Drill Rods Shank Rods
TBM Cutter
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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To know More About Litian Rock Tools

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Litian Updates
Maintenance and Best Practices for RCD Roller Cutters
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Litian Updates
Mar 08-2026
What is the difference between top hammer drilling and DTH drilling?
Top hammer and down-the-hole (DTH) drilling are two dominant percussive drilling methods widely used in mining, quarrying, construction, tunneling, and geotechnical projects.
Feb 28-2026
Maintenance and Best Practices for RCD Roller Cutters
Maintaining RCD roller cutters is essential for ensuring long-term reliability, optimal performance, and cost savings in drilling operations. These tools, also referred to as random roller cutters or ...
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Technical Innovations and Future Trends in RCD Roller Cutters
Litian Rock Drilling Tools Manufacturers

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

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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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