ZYAMY 2pcs ER11 A Collet Nut Clamping CNC Milling Turning Collet Chucks, Black ER11-A Type M14 Thread Collet Clamping Hex Nuts for CNC Milling Chuck Holder Lathe

Model: ER11 A, Material: 40CR steel, precision ground and hardened, strong clamping force, not easy to break or deform, can be used for a long time. Dimensions: Approx. 19x14mm/0.75" x 0.55" (D*H); Hole 9mm/0.35", fits most tool holders. Replacement: Nuts are precision ground and hardened to make a good replacement for damaged parts and are an excellent replacement for damaged parts. Suitable: It can be used with ER type tool holder, boring tool, tool holder, extension rod nut clamping drill and other tools. Package includes: 2 pieces of ER11-A collet clamping nuts, self-release design so that the tool will never get stuck in the holder.