Collet Chuck Holder 20CrMnTi Carbon Steel CNC Mill Spindle Tool Holder with Wrench, and Wear Resistance for Precision Machining

Item Type: Collet Chuck HolderMaterial: 20CrMnTi + Carbon SteelModel: BT40-ER11A-100Blade Handle Taper: 7: 24Chuck Specification: ER11Clamping Range: Approx. 1-7mm / 0.04-0.28inBlade Handle Working Length: Approx. 100mm / 4.00inAccuracy: 0.005mmHardness: >HRC56°Speed: 10000rpmRough Surface: 0.8mmPackage List：1 x Mill Spindle Tool Holder 1 x Wrench 1 x Storage Box Note:Please select according to the installation specifications

• Design: This collet chuck holder is precision-ground after heat treatment to ensure exceptional concentricity and runout accuracy, making it ideal for high-precision CNC milling operations where consistent tool alignment is critical.
• Superior Wear Resistance: Made from 20CrMnTi carbon steel and treated with carburizing and quenching, this CNC mill spindle holder delivers high surface hardness and strong resistance to wear, significantly outperforming standard tool holders in demanding machining environments.
• Wide Application Compatibility: The collet chuck holder works seamlessly with a variety of CNC machines and supports multiple collet sizes, making it suitable for machinists, metalworkers, and hobbyists who need reliable performance across different precision milling tasks.
• Durable Integral Construction: Featuring integral with finely controlled internal and external processing, this spindle tool holder offers enhanced structural stability, reduced vibration, and long-term durability even under heavy-duty or continuous use conditions.
• User-Friendly Setup: Includes a matching wrench for quick and secure installation, and its wide clamping range ensures easy tool changes without compromising grip strength—perfect for efficient workflow in both professional and home machine shops.