10pcs ER20 Spring Collet of various sizes Set - Made from high quality 65Mn spring steel - good elasticity, high precision and run-out tolerance is less than 0.008mm - for CNC Milling Lathe

• ➤【Premium Material】They are made of high quality 65 mn spring steel and are stable performance.
• ➤【High Accuracy】Good workmanship, good elasticity, high precision and concentricity tolerance are less than 0.008 mm.
• ➤【Easy to distinguish】Each collet is clearly marked so you can easily distinguish them.
• ➤【Attention】The collet must be inserted into the collet chuck nut before inserting into the collet chuck.
• ➤【Perfect Replacement】Excellent collet for CNC milling lathes and workpiece engraving machines.

Description: These collets are made of high quality 65Mn spring steel for CNC router lathes and engraving machines. There are a total of 10 collets of different sizes in the set, which can basically meet your needs. The collet must be inserted into the collet nut before inserting into the collet chuck. Specifications: Material: 65Mn spring steel. Model: ER20. Range: 3 mm, 1/8 inch, 4 mm, 5 mm, 6 mm, 1/4 inch, 8 mm, 10 mm, 12 mm, 1/2 inch. Height: 30 mm. OD: 15 mm. Concentricity tolerance: <0.008 mm. Package includes: 10 x collets.