Internal Threading Boring Turning Tool Holder SNR0020R22 For 22IR Inserts Internal threaded boring bar turning tool for lathes. The shanks are made of tool steel and are heat treated. Shock-resistant and durable, not easy to deform, the surface is nickel-plated. Corrosion resistant. Shank diameter 20 mm. SNR0020R22 1PCS.
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