Accupro ER16HP 10.31 Er Collet 13/32 Inch ER16

Product Description

The ACCUPRO ER16HP 10.31 is an ER-style collet in the ER16 series, designed to hold cutting tools and workpieces in CNC machining centers, milling machines, lathes, and high-speed spindles. This collet accepts a 13/32 inch shank diameter and delivers a Total Indicator Runout (TIR) of 0.0002 inches (0.0050 mm), providing the precision grip required for accurate, repeatable machining operations. Machinists, tooling specialists, and CNC operators install this collet as part of a standard ER16 collet chuck system. The compact body measures approximately 1.23 inches in height and 1 inch in width, and the unit weighs 0.35 pounds.

This collet is suited for use in light-duty to medium-duty machining applications where ER16 collet chucks are specified. Typical installations include CNC milling spindles, router spindles, and manual milling machine setups requiring precise tool holding in the ER16 size range. The 13/32 inch bore size accommodates standard round-shank end mills, drills, and similar cutting tools within that diameter. It is appropriate for both production shop environments and toolroom applications where consistent runout performance is required.

Key Features

• ER16 series collet with 13/32 inch bore capacity for standard round-shank tooling
• TIR of 0.0002 inches (0.0050 mm) for precise, repeatable tool concentricity
• Compact profile: approximately 1.23 inches tall and 1 inch wide
• Lightweight at 0.35 pounds, reducing spindle load in high-speed applications
• Single-piece collet construction for direct drop-in use with compatible ER16 collet chucks

Compatibility

Designed as an OEM-style replacement collet for use with standard ER16 collet chuck systems in CNC and manual machining applications.

Installation Notes

Installation of ER collets should be performed by a qualified machinist or tooling technician with the machine powered down and the spindle fully stopped. The collet should be seated properly into the collet nut before threading onto the chuck body — never tighten the nut onto a collet that is not engaged in the chuck. Use the appropriate ER16 collet wrench and chuck spanner to achieve proper clamping force; over-tightening can damage the collet taper and reduce TIR performance. Inspect the collet and chuck bore for chips or debris before each installation.