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7°H22/H25 taper rod
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R28 coupling R28/R28

R25 coupling R25/R25

Coupling is an accessory that connects the shank apdater and drill rod. It is used for transmission and to protect the shank adapter and drill rod. It is made of alloy steel and is fully carburized.

Length: 150mm

Thread: R25-R25

Model: full bridge/semi bridge

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T45 coupling T45/T45

Coupling is an accessory that connects the shank adapter and drill rod. It is used for transmission and to protect the shank adapter and drill rod. It is made of alloy steel and is fully carburized. Length: 210mm Thread: T45/T45 ,T45/T51 Model: full bridge/semi bridge
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T38 coupling T38/R32 T38/T38

Coupling is an accessory that connects the shank adapter and drill rod. It is used for transmission and to protect the shank adapter and drill rod. It is made of alloy steel and is fully carburized. Length: 190mm Thread: T38/R32 , T38/T38 Model: full bridge/semi bridge
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T51 coupling T51/T51

Coupling is an accessory that connects the shank adapter and drill rod. It is used for transmission and to protect the shank adapter and drill rod. It is made of alloy steel and is fully carburized. Length: 225mm Thread: T51/T51 ,T45/T51 Model: full bridge/semi bridge
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R28 coupling R28/R28

Coupling is an accessory that connects the shank adapter and drill rod. It is used for transmission and to protect the shank adapter and drill rod. It is made of alloy steel and is fully carburized. Length: 150mm Thread: R28-R28/R28-R32 Model: full bridge/semi bridge
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R32 coupling R32/R32

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Coupling is an accessory that connects the shank adapter and drill rod. It is used for transmission and to protect the shank adapter and drill rod. It is made of alloy steel and is fully carburized. Length: 170mm Thread: R32-R32/R32-R25/R32-R28 Model: full bridge/semi bridge
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