High Precision Performance: With as low as 0.0004" TIR, this CAT40 collet holder is compatible with ER32 collets. It meets the high standards of precision mold making and aerospace machining applications

Stable High-Speed Cutting: Rated up to 4000 RPM, this CAT40 tool holder provides stable performance with reduced vibration at high speeds. It helps maintain quality surface finishes while extending spindle and tool life

Quick & Easy Tool Changes: Featuring a V-groove design for fast self-centering alignment and a fully ground flange for consistent positioning, this CAT40 collet chuck set allows smooth and hassle-free tool changes

Durable Steel Construction: Made from durable 40CR alloy steel, this CAT40 tool holder set is heat-treated and precision ground to resist deformation. Great for high-speed milling and heavy-duty grinding of precision components

Standard Gauge Length: With a 2.76" gauge length, this CAT40 milling chuck set matches common CNC machine specifications. No need to reset tool offsets after replacement, helping improve machining efficiency and reduce setup time