Parlec ER25-0156 ER25 Collet 0.156 Inches

Product Description

The PARLEC ER25-0156 is an ER25 series collet designed for use in CNC machining centers, milling machines, and other spindle-driven equipment that accept the ER25 collet system. With a collet size of 0.156 inches and an overall length of 1.338 inches, this collet provides secure tool holding for small-diameter cutting tools, drills, and end mills. It is installed and serviced by machinists and CNC technicians working in production and job-shop environments where consistent tool runout and clamping force are critical to part quality.

This collet is suited for light to medium-duty machining operations where precise tool holding in the ER25 size range is required. The 0.156-inch collet size accommodates tooling at or below that diameter, with a minimum collet capacity of 0.117 inches, making it versatile for a range of small tool shanks. Typical applications include vertical machining centers, knee mills, and CNC routers equipped with ER25 collet chucks or tool holders.

Key Features

• ER25 collet series for use with ER25-compatible chuck bodies and tool holders
• 0.156-inch collet size with a minimum capacity of 0.117 inches for range clamping
• Overall length of 1.338 inches for standard ER25 chuck fitment
• Compact overall diameter of 1.023 inches consistent with the ER25 envelope
• Lightweight at 0.18 pounds for minimal spindle load contribution

Compatibility

Designed as an OEM-style replacement or standard tooling component for ER25 collet chucks and tool holder bodies that accept the ER25 collet series.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Ensure the spindle or chuck is fully de-energized and at a complete stop before changing collets. Verify the collet seats cleanly into the nut and chuck body before torquing, and inspect the collet bore and seating surfaces for chips or debris prior to assembly. Follow the machine tool manufacturer guidelines for proper collet nut torque and tool projection length.