PET-U 18Pcs ER32 Collet 2/32-25/32 Inch ER32 Spring Collet Set Carbon Steel 0.0002 Inch Fit for Milling Lathe Engraving Tool

100% Steel Material: ER32 spring collet is made of stainless steel, strong and durable, long service life Product size: 3/32, 1/8, 3/16, 7/32, 1/4, 5/16, 11/32, 3/8, 13/32, 7/16, 1/2, 17/32, 9/16, 5/8, 21/32, 11/16, 3/4, 25/32 inch Type distinction: Each size is individually labeled and packaged for quick selection by the user at the time of use Simple to install: Users without tools, can easily install, do not need to have professional ability