labwork ER-40 MT3 Spring Collet Chuck Set with 15Pcs ER40 1/8 Inch-1 Inch Collets Set and Wrench Fit for CNC Engraving Machine and Milling Lathe Tool

Collet Range - 1/8, 3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, 1-inch Product Parameter - ER40 clamping range: 2-26mm; Drawbar end thread: 3/8 inch -16; Accuracy: 0.0005-inch Product Material - Made of high grade alloy steel; great processing and fine making compatible with durability and toughness Application For -The precision collet chuck holder for professionals and hobbyists demanding milling and drilling applications