C-8-10-12-16-20-25-mm ER-8-11-16-20-A Straight Shank Extension Mini Collet Chuck

Features: brand new and high quality Made of high-quality materials durable The full range of Type A ER sizes are available: ER8A ER11A ER16A ER20A. Provide a full range of tool holder diameters: 8mm 10mm 12mm 16mm 20mm 25mm. The advanced vacuum quenching furnace can achieve carbon and oxygen co-permeation increase the hardness of the tool shaft increase the life and tighten the holding force. Made of high-quality alloy steel 40CrMnTi. Hardness HRC 58-62. Hardened and precision ground. The extra-long avoidance of the ER extension rod can bring the milling cutter into the deep cavity processing slot for processing. Designed for ultra-high-precision and high-speed applications. Product parameters: Color: as shown Material: Alloy steel Maximum speed: 30000rpm Runout: about 0.01mm Optional specifications: C8-ER8A C10-ER8A C10-ER11A C12-ER8A C12-ER11A C12-ER16A C16-ER11A C16-ER16A C16-ER20A C20-ER11A C20-ER16A C20- ER20A C25-ER16A C25-ER20A For example: C16-ER20A-100L: Straight shank size: 16mm Chuck size: ER20A Nut type: Type A Handle length: 100mm Package list: 1 * Straight shank extension rod Note: 1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2.Please allow slight manual measurement deviation for the data.