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Litian Heavy Industry Machinery Co., Ltd
Litian Heavy Industry Machinery Co., Ltd
Toyo PR220 Shank Adapter
Toyo PR220 Shank Adapter

Toyo PR220 Shank Adapter

App.

Thread

Length

Diameter

Weight

Model No.

Similar Product Part No.



[mm]

[mm]

[kg]


Sandvik / Atlas Copo

BE

R32

330

44

3.0

R32*4D44-330

7803-7500-61 /

BE

T38

446

44

4.0

T38*4D44-446

7304-7500-60 /



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Litian Updates
R32 Button Bits: Sizes, Threads and Applications
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Litian Updates
Jun 05-2026
Why Are My Button Bits Losing Buttons?
If you’ve been in rock drilling for any length of time, you know the frustration all too well. You’re making good progress, penetration rates are steady, and then suddenly—a button is gone.
May 30-2026
R32 Button Bits: Sizes, Threads and Applications
The R32 button bit is the most widely used small- to medium-diameter threaded drill bit in top hammer rock drilling. Its defining feature is the R32 rope thread, which has a nominal 32 mm major diamet...
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Sandvik vs Atlas Copco Shank Adapters: A Compatibility Guide for Rock Drilling Professionals
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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