Iscar 4592249 ER16 Collet Chuck Straight Shank Through Coolant

Product Description

The ISCAR 4592249 is an ER16 collet chuck with a straight shank, designed for use in CNC machining centers, mills, and drilling applications where accurate, repeatable tool holding is required. It accepts ER16 series collets with a clamping range of 0.022 to 0.396 inches, making it suitable for a wide range of small-diameter cutting tools. The chuck delivers a total indicated runout (TIR) of 0.0002 inches, supporting precision work where concentricity directly affects surface finish and tool life. Through-spindle coolant capability is integrated, allowing coolant to reach the cutting edge during high-speed operations.

This collet chuck is suited for production and job-shop environments running small-diameter end mills, drills, and reamers. The 0.75 inch straight shank and 3.5 inch overall length make it compatible with standard toolholding setups on vertical and horizontal machining centers. The 1.0 inch projection positions the collet nose away from the spindle face, providing clearance for workpiece features. Actuation is accomplished with a standard ER wrench, keeping the setup process straightforward for machinists familiar with ER tooling systems.

Key Features

• ER16 collet system with a clamping range of 0.022 to 0.396 inches
• TIR of 0.0002 inches for high-precision tool holding
• Through-spindle coolant delivery directs coolant to the cutting zone
• Straight shank diameter of 0.75 inches for broad machine compatibility
• 1.0 inch projection with a 3.5 inch overall length
• Wrench-actuated design using standard ER tooling hardware

Compatibility

Designed as an OEM-style replacement or production toolholder for machining centers and mills equipped with straight-shank toolholding and ER16 collet compatibility.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Confirm the machine spindle is fully stopped and powered down before changing toolholders. Clean the shank and spindle bore thoroughly before insertion to prevent runout errors caused by debris. Use the appropriate ER16 collet nut and spanner wrench to seat and torque the collet properly; follow the machine manufacturer guidelines for draw-bar or retention force specifications.