Specification:
Item Type: Straight Shank Extension Rod
Material: 40Cr+ Carbon Steel
Hardness: 45-46HRC
Head Diameter: Approx. 16mm / 0.63in
Clamping Range: Approx. 1-7mm / 0.04-0.28in
Adapter Collet: For ER11
Thread Type: M
Blade Shank Diameter: Approx. 16mm / 0.63in

Package List:
1 x Straight Shank Extension Rod
1 x Wrench

Note:
1. Incorrect assembly may damage the accuracy of the nut and spring
2. Only the matching collet chuck can be used to assemble the nut
3. Do not clamp tools that exceed the clamping range

Feature:
1. 40Cr Material: Extension rod is made of 40Cr, effectively suppressing vibration, high concentricity, stable processing
2. Integral Molding: The inside and outside are integrated, with fine control processing, more stable performance
3. Long Life: After the inner hole is ground, suitable for high accuracy machine tools and has longer life than ordinary tool holders
4. Higher Hardness: Using carburizing and quenching process, higher hardness, stronger interface fatigue resistance, and more
5. More Efficient: Processing extension rods that allow you to work better, more efficiently, and more , a good substitute