Bottom bracket tapping tools — BSA — 1697

material: special tool steel
ergonomic heavy duty double component handle
This tool is used for tapping the threads in the bottom bracket shell of a frame. 1697 supports the BSA bottom bracket standard. When cutting left and right thread insert the tool at one time parallel from both sides into the bottom bracket shell of a frame. Always use cutting oil when using this tool. The design enables effective and precise work