Value Collection SC84904507 ER11 Collet Chuck Straight Shank

Product Description

The VALUE COLLECTION SC84904507 is an ER11 collet chuck designed for use in CNC machining centers, milling machines, and high-speed spindle applications. It accepts ER11-series collets with a clamping range of 0.019 to 0.276 inches, making it suitable for a wide range of small-diameter tooling. The straight shank measures 1/2 inch in diameter and 6.65 inches in length, providing secure seating in standard tool holders. With a total indicator runout (TIR) of 0.0004 inches, this chuck delivers the concentricity needed for precision cutting, drilling, and tapping operations. Installation and tightening are performed with a standard wrench on the 9/16-inch hex nut.

This ER11 collet chuck is suited for light to medium-duty machining operations in job shops, production environments, and toolroom applications. The straight shank design fits directly into compatible spindle bores or tool holders without requiring adapters in many common setups. It is typically installed by machinists and CNC technicians working with small-diameter end mills, drills, reamers, and taps. The collet nut diameter of 0.62 inches and lock nut length of 0.47 inches conform to standard ER11 collet system geometry.

Key Features

• ER11 collet system with 0.019 to 0.276 inches clamping capacity
• 0.0004 inches TIR for precision concentricity in high-speed applications
• 1/2-inch straight shank, 6.65 inches in length for deep-reach setups
• Wrench-actuated 9/16-inch hex collet nut for positive clamping
• No through-coolant — suited for dry or flood coolant applied externally
• Lightweight at 0.55 pounds, reducing spindle load

Compatibility

Designed for use with standard ER11-series collets. Fits machine spindles and tool holders accepting a 1/2-inch straight shank. Verify spindle bore and drawbar thread specifications before installation.

Installation Notes

Power down and lock out the machine spindle before installing or removing this collet chuck. Use the appropriate ER11 collet wrench and spanner to seat and torque the collet nut — do not use impact tools on the collet nut. Inspect the shank and bore for debris or damage before seating. Confirm collet size matches the tool shank diameter to avoid slippage under cutting loads.