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

Collet Sizes: 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. Main Parameter: ER40 clamping range: 2-26mm; Drawbar end thread: 3/8inch-16. Accuracy: 0.0005inch. Product Material: Made of high quality alloy steel, great processing and fine making compatible with durability and toughness. Wide Application: The brand new precision collet chuck holder for professionals and hobbyists demanding milling and drilling applications. Package Contents: 1 x MT3 ER40 Collet Chuck; 1 x Wrench/Spanner; 15 x ER40 Spring Collet Set.