Simply choose the right size collet for the job, set tool depth, and tighten the collet nut and pull stud to the proper torque using a torque wrench and tightening fixure.

• Model Number: CAT40-ER16-4 / CAT40-ER20-4 / CAT40-ER25-4 / CAT40-ER32-4 / BT40-ER32-70
• Brand Name: SFX / OEM
• Material: 20CrMnTi
• Hardness: HRC56-58
• Shipping Type: DHL, Fedex, TNT, UPS, EMS, etc.
• Package Contains:Every tool holder including 1 pc pull stud and 1 pc ER Nut.