Iscar 4501993 ER20 Collet Chuck 22mm Straight Shank

Product Description

The ISCAR 4501993 is an ER20 collet chuck designed for precision tool holding in CNC machining centers and milling applications. It accepts ER20-series collets with a clamping range of 1 mm to 13 mm (0.0394 inches to 0.5118 inches), covering a broad range of small-diameter cutting tools and drill shanks. The chuck features a straight shank measuring 22 mm (0.8661 inches) in diameter and an overall length of 119 mm (4.6850 inches), with a projection of 39 mm (1.5354 inches). Through-spindle coolant capability delivers cutting fluid directly to the tool tip for improved chip evacuation and tool life. This chuck is installed by machinists and CNC setup technicians in production and job-shop environments.

This collet chuck is suited for use in vertical and horizontal machining centers, CNC milling machines, and drilling stations where ER20 tooling is the standard interface. The straight shank configuration is compatible with straight-bore spindles and tool holders. Through-coolant capability makes it well suited for deep-hole drilling, high-speed milling, and applications where heat management is critical. The 22 mm shank diameter and compact nose diameter of 28 mm (1.1024 inches) allow access in tighter workpiece geometries.

Key Features

• ER20 collet system with 1 mm to 13 mm clamping capacity
• Through-spindle coolant support for direct tool-tip fluid delivery
• Straight shank design at 22 mm (0.8661 inches) diameter
• 119 mm (4.6850 inches) overall length with 39 mm (1.5354 inches) projection
• Nose diameter of 28 mm (1.1024 inches) for access in confined setups
• Accepts standard ER20-series collets for broad tooling compatibility

Compatibility

Designed for use with ER20-series collets in straight-bore spindle interfaces on CNC machining centers and milling machines requiring a 22 mm straight shank tool holder with through-coolant capability.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Power down and de-energize the machine spindle before mounting or removing the chuck. Ensure the spindle bore and shank surfaces are clean and free of chips or burrs before seating the chuck. Verify coolant line connections are secure and check for leaks before returning the machine to full operation.