Accuracy and strength have been improved in every aspect, including diagonal dimensional accuracy, stability of drive angle insertion, and increased cross-sectional area.
It has a power fit shape that prevents stress concentration through surface contact.
The slim design in the center of the shaft makes it easy to turn quickly (square side).
The power fit shape is adopted on the insertion angle side.
Excellent torque transmission.
||Special tool steel
|Weight / Mass unit
||Do not connect more than two extention bar together.