L & R Bottom Bracket Thread Tapping Tool Bc 1.37 X24t Set Repair For Threads

Make Bottom Bracket Thread Chasing Tools Cheap u0026 Easy Model BC 1.37x24T for making bottom bracket threads or repairing bottom bracket threads High-speed steel is used for titanium plating, which greatly improves the cutting performance of the drill The entry-level version is made of high-speed steel + titanium-plated, suitable for tapping aluminum alloy center shaft threads the professional version is made of high-speed steel + titanium-plated + cobalt, suitable for tapping aluminum, iron, and stainless steel bottom bracket threads Fine workmanship, school to prevent debris accumulation, ...
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