對於英製絲錐：1.370” x 24 TPI 右旋螺紋和左旋螺紋。
由優質鋼製成的精密工具系統。
它是用於在車架五通殼上攻螺紋的專業工具。
導軌可保持隨附的端面刀具與中軸的軸線完全成直角，以便清理中軸外殼的表面。
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For English thread taps: 1.370" x 24 TPI right-hand thread and left-hand thread.
A precision tool system made from high-quality steel.
It is a professional tool used for cutting threads on bottom brackets of bicycle frames.
The guide ensures that the included facing tools are perfectly perpendicular to the axis of the bottom bracket, allowing for surface cleaning of the bottom bracket shell.
由優質鋼製成的精密工具系統。
它是用於在車架五通殼上攻螺紋的專業工具。
導軌可保持隨附的端面刀具與中軸的軸線完全成直角，以便清理中軸外殼的表面。
-----------------------------------------------------------------------------------------------------
For English thread taps: 1.370" x 24 TPI right-hand thread and left-hand thread.
A precision tool system made from high-quality steel.
It is a professional tool used for cutting threads on bottom brackets of bicycle frames.
The guide ensures that the included facing tools are perfectly perpendicular to the axis of the bottom bracket, allowing for surface cleaning of the bottom bracket shell.
