CNC Milling Collets 1/8 4mm 6mm 5 Pcs ER11-A Collet Clamping Nut, M14 Collet Clamping Nuts For CNC Lathe Tool Holder Collets Collet must be placed into collet chuck nut before inserting into collet chuck. Various Sizes]This kit includes two ER11 spring collets with different sizes: 1/8 (175 mm) and 1/4 (6.35 mm). The total length of each collet is approximately 18 mm. These different sizes provide flexibility and adaptability to accommodate various tool diameters Each collet is marked clearly so you can easily distinguish them ER11 5 MM Motor Shaft Collet Chuck Spindel Verlengstuk Made from high quality 65Mn spring steel, they are stable in performance Package Includes: 3 x Collets 1pc ER11 3mm 1/8 Inch (3.175mm) 4mm 6mm 1mm 2mm 2.... – Vicedeal Description: ✔ These spring collets are made of high quality 65Mn spring steel for CNC milling lathe tool and work-holding engraving machine. ✔ Collet must be placed into collet chuck nut before inserting into collet chuck. ✔ There are 3 collets of various sizes in 4mm, 1/8 and 6mm.