Accupro 588485 ER20 Collet 13 Mm

Product Description

The ACCUPRO 588485 is an ER20 series collet sized at 13 mm, used to secure cutting tools in ER-style collet chucks on CNC machining centers, manual milling machines, and drilling equipment. The collet operates at a clamping pressure of 1000 and provides a stable, concentric grip on round-shank tooling. Machinists and tool-room technicians rely on ER20 collets as a standard workholding solution when precision tool holding and repeatable runout are required. The 588485 ships as a single unit and weighs 0.5 pounds.

ER20 collets are used in a wide range of light-to-medium machining applications including milling, drilling, tapping, and reaming. They are compatible with any ER20-spec collet chuck, whether mounted in a CNC machining center spindle, a manual mill, a lathe turret, or a dedicated collet chuck holder. This collet is appropriate for production shops, tool rooms, and maintenance environments where ER20 toolholding systems are already in use.

Key Features

• ER20 collet series — fits any ER20-compatible collet chuck
• 13 mm bore size for direct clamping of 13 mm shank tooling
• 1000 clamping pressure rating for secure tool grip during cutting operations
• Single-unit packaging — no minimum multi-pack requirement
• Lightweight at 0.5 pounds for easy handling and tool-change efficiency

Compatibility

Designed as an OEM-style replacement or direct-use collet for any ER20-specification collet chuck system requiring a 13 mm bore collet.

Installation Notes

ER20 collets are installed by machinists or toolroom technicians using an ER20 collet nut and a compatible collet chuck body. Before changing collets, the spindle must be fully stopped and the machine placed in a locked or e-stop state per shop safety procedures. Use the appropriate ER collet nut wrench and chuck-holding fixture to achieve proper seating — avoid impact tools that can damage collet surfaces or threads. Inspect the collet bore and chuck taper for chips or contamination before assembly.