Kennametal 1135935 ER25 Collet 6.00mm 0.2370 Inch

Product Description

The KENNAMETAL 1135935 is an ER25 series collet designed for use in CNC machining centers, milling machines, and other rotating spindle applications that accept the ER25 collet standard. This collet holds tooling at a 6.00mm nominal bore size, equivalent to 0.2370 decimal inch, and delivers a total indicator runout (TIR) of 0.0152mm, making it suitable for precision work where concentricity is critical. The overall length is 34.01mm and the overall diameter is 26.01mm. It is installed by machinists and toolroom technicians maintaining tool assemblies on production or job-shop equipment.

This collet fits into any ER25-compatible collet chuck or spindle holder, which is one of the most widely used collet standards in CNC and manual machining environments. Typical applications include end milling, drilling, reaming, and tapping where a secure, repeatable tool grip is required. The 6.00mm bore accommodates shanks at that diameter, making it a common size for metric tooling used in general machining operations across both light and heavy manufacturing settings.

Key Features

• ER25 collet series for broad compatibility with ER25-standard chuck bodies
• 6.00mm nominal collet bore size, 0.2370 decimal inch equivalent
• Low TIR of 0.0152mm for precision concentricity in rotating applications
• Overall length of 34.01mm and overall diameter of 26.01mm
• Sold individually, single-piece packaging

Compatibility

Designed for use with ER25-standard collet chucks and spindle tool holders. Accepts tool shanks at the nominal 6.00mm collet bore size.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Power down and lock out the machine spindle before seating or removing any collet. Use the appropriate ER25 collet nut and a calibrated torque wrench to achieve proper clamping force per the chuck manufacturer's specification. Inspect the collet bore and chuck taper for chips or contamination before installation to maintain rated TIR performance.