Accupro 587662 ER11 Collet 0.157 in 4.00mm

Product Description

The ACCUPRO 587662 is an ER11 series collet designed for precision workholding in CNC machining, milling, and routing applications. With a collet size of 0.1570 inches (4.00mm) and a minimum collet capacity of 0.137 inches (3.5mm), this collet provides a reliable clamping range suited to small-diameter tooling. The total indicator runout (TIR) is rated at 0.02mm, making it appropriate for applications where concentricity and tool accuracy are critical. Licensed machinists, CNC operators, and tool-and-die technicians are the primary installers and users of this component.

This ER11 collet is used in CNC routers, engraving machines, and high-speed spindles that accept the ER11 collet nut and chuck system. The ER11 series is one of the smallest standard collet sizes in the ER family, making it well-suited for light-duty precision cutting, PCB drilling, and small-bore milling work in both production shop and prototype environments. It accepts tool shanks up to 0.1570 inches in diameter with a working range down to 0.137 inches.

Key Features

• ER11 collet series for use with standard ER11 chucks and collet nuts
• Collet size of 0.1570 inches (4.00mm) with a minimum capacity of 0.137 inches (3.5mm)
• 0.02mm TIR rating for consistent tool concentricity during precision operations
• Compact ER11 form factor suited to high-speed and small-diameter tooling applications
• Sold individually (package quantity of 1)

Compatibility

Designed for use with ER11 collet chucks and collet nuts that conform to the standard ER11 collet system. Accepts tool shanks with a nominal diameter of 4.00mm (0.1570 inches) and a minimum shank size of 3.5mm (0.137 inches).

Installation Notes

Installation is performed by machining professionals or CNC setup technicians. Always ensure the spindle is fully powered down and at a complete stop before changing collets. The collet should be seated correctly in the collet nut before threading onto the chuck body to prevent damage to the collet taper. Do not exceed the rated clamping range of this collet, as under-sized or over-sized shanks can cause runout errors or collet failure.