KFFKFF CAT40 Collet Holder ER 16/32 Set, 35 Pieces, SLN FMB ER16/32 APU Tool Holders with Spring Steel Collet Chucks, Includes 10 Pull Studs and 3 Wrenches, Compatible with Milling Machines

Durable Spring Steel Construction: Enhance your machining precision with this robust CAT40 collet holder and ER spring collet chuck set, designed for excellent balance and extended durability. The set includes 6 CAT40 SLN collet holders in the following sizes: 1/4", 3/8", 1/2", 5/8", 3/4", and 1". The ER32 and ER16 collet holders feature a dynamic balance with a length of 2.76", while the APU collet holder has a 13 mm extension. Additionally, the FMB collet holder offers an adjustable range of 1"-2.06". Enhanced Accuracy: These CAT40 spring collet chucks feature a TIR of 0.0006" / 15 μm, delivering exceptional precision. Crafted with hardened and ground materials, they offer remarkable concentricity. Designed for high-speed operations, these collet chucks are balanced to comply with industrial standards, ensuring reliable performance. Suitable for applications in aerospace, automotive production, medical devices, electronics, and other industries. Durable Construction: This CAT40 collet holder and ER spring collet chuck set are crafted from robust 40Cr and 45# alloy steel, featuring a hardened and precision-ground design. These materials make them ideal for high-speed milling, precision part machining, and heavy-duty grinding tasks. The sturdy build enhances the longevity of the collet chucks and minimizes deformation during use. Wide Range of Collet Sizes: This collet chuck set features 10 ER16 collets in sizes: 1/32", 1/16", 3/32", 1/8", 3/16", 7/32", 1/4", 5/16", 11/32", 3/8", along with 12 ER32 collets in sizes: 1/8", 3/16", 7/32", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4". The angled slot design enhances stability and ensures improved balance for the collet holder assembly. Compatible with standard ER spring collet chucks, it is well-suited for cooling and tooling applications. Additional Tools & Pull Studs: This CAT40 collet set is equipped with three wrenches (ER32, ER16A, APU13) to facilitate secure tightening and effortless release as required. It also includes 10 pull studs, making it suitable for CNC lathes, milling machines, drilling equipment, and robust manual tools.