Specifications:
Item Type: Milling Cutter Accessories
Extension rod material: carbon steel
Extension rod diameter: 1/4in
ER16 Collet Diameter: Approx. 3.5mm/0.14", 6.5mm/0.26"
ER16 Spanner Length: Approx. 12.5cm/4.9"
Package List: 1 x Extension Rod, 1 x ER16 Spanner, 1 x ER16-6.5 Collet, 1 x ER16-3.5 Collet, 3 x Storage Box
Note: 1.Make sure the ER chuck extension is installed correctly. Please note that the extension handle should be firmly secured. You need to tighten the chuck nut and the extension rod. Due to manual measurement, please allow a 0.04 - 0.1 inch (1 - 3 mm). 3. When processing the material, it will speed up slowly at first, wait for stability and speed up the process.