Parlec ER20-0433 ER20 Collet 0.4331 in 11mm

Product Description

The PARLEC ER20-0433 is an ER20 series collet designed for use in ER20-compatible tool holders and collet chucks. It provides secure workpiece or cutting tool clamping in milling, drilling, and light turning operations on CNC machining centers and manual mills. The collet accepts a nominal collet size of 11.00 mm (0.4331 inches) with a minimum collet capacity of 0.3937 inches (10.0 mm), giving machinists a defined clamping range suited to standard tooling shank diameters. Overall length is 1.24 inches. At 1 pound, this collet is built for everyday production use.

ER20 collets are a widely adopted standard in precision machining environments, fitting production shops, job shops, and tool rooms running CNC mills, machining centers, and drill presses equipped with ER20 collet chucks. This collet is appropriate for holding end mills, drills, reamers, and taps within its rated clamping range. It is typically installed by machinists and toolroom technicians during tooling setup and changeover.

Key Features

• ER20 series collet for use with ER20-compatible collet chucks and tool holders
• Nominal collet size of 11.00 mm (0.4331 inches) for standard shank tooling
• Minimum collet capacity of 0.3937 inches (10.0 mm)
• Overall length of 1.24 inches for compact tool assembly profiles
• Suits milling, drilling, reaming, and tapping applications

Compatibility

Designed as an OEM-style replacement or standard tooling collet for use with ER20-compatible collet chucks and tool holders accepting the ER20 collet series.

Installation Notes

Installation is performed by machinists or toolroom technicians during machine setup or tooling changeover. Always ensure the collet chuck and spindle are fully de-energized and the machine is in a safe lockout state before handling tooling. Use the appropriate ER20 collet nut and spanner wrench rated for the chuck; do not exceed the chuck manufacturer's recommended clamping torque. Inspect the collet bore and seating surfaces for chips or damage before each use.