Parlec C50-20ERP412 ER20 Collet Chuck CAT50 Taper

Product Description

The PARLEC C50-20ERP412 is an ER20 collet chuck with a CAT50 taper shank, designed for CNC machining centers that require precise, high-speed toolholding. It accepts ER20 series collets with a clamping range of 1 mm to 13 mm (0.0394 to 0.5118 inches), making it suitable for a wide range of drill, reamer, and end mill shank diameters. The chuck delivers a total indicator runout (TIR) of 0.0002 inches and is balanced to 20,000 RPM, supporting high-speed spindle applications. Through-coolant capability directs fluid directly to the cutting zone for improved chip evacuation and tool life. Licensed machinists and toolroom technicians are the primary users of this toolholder.

This collet chuck is suited for production and job-shop CNC vertical and horizontal machining centers running ER20 tooling. The 4.12-inch projection from gauge line provides clearance for workholding fixtures and complex part geometries. The 8.12-inch overall length accommodates setups where spindle-to-work distance is a factor. Through-spindle coolant delivery makes this chuck a practical choice for deep-hole drilling, reaming, and high-feed milling operations where flood coolant alone is insufficient.

Key Features

• ER20 collet system accepts 1 mm to 13 mm shank diameters
• 0.0002-inch TIR for precise, repeatable tool runout
• Balanced to 20,000 RPM for high-speed spindle compatibility
• Through-spindle coolant delivery directs fluid to the cutting edge
• CAT50 taper shank for secure, standardized spindle engagement
• Wrench-actuated collet nut for straightforward tool changes

Compatibility

Designed as an OEM-style ER20 collet chuck for CNC machining centers equipped with CAT50 spindle interfaces and through-spindle coolant capability.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Power down and lock out the machine spindle before mounting or removing the toolholder. Use the appropriate CAT50 retention knob torque procedure specified by the machine tool manufacturer. Inspect the collet, collet nut, and taper shank for chips or damage before each assembly to maintain TIR performance.