Techniks 04210-15(SET) ER20 Collet Set 15 Pc

Product Description

The TECHNIKS 04210-15(SET) is a 15-piece ER20 collet set designed for use in CNC machining, milling, and toolholding applications. The set covers the full range of ER20 collet sizes up to a maximum capacity of 1/2 inch, allowing machinists and tool room technicians to hold a wide variety of cutting tools and workholding shanks with a single kit. The ER collet system is an industry-standard clamping design known for reliable runout control and broad compatibility with ER20-spec toolholders. At 0.5 pounds, the set is compact and easy to store at the machine.

This collet set is suited for use in vertical machining centers, knee mills, drill-tap centers, and any spindle accepting an ER20-series collet chuck. It is a practical solution for job shops, maintenance facilities, and production environments that require quick tool changes across multiple shank diameters. The set is appropriate for both ferrous and non-ferrous cutting applications where ER20 toolholding is specified.

Key Features

• 15-piece set covers the full ER20 collet range up to 1/2 inch capacity
• ER20 series collets fit any ER20-spec collet chuck or holder
• Industry-standard ER collet system for consistent clamping and runout control
• Compact set weight of 0.5 pounds for easy bench or toolbox storage
• Single kit eliminates the need to source individual collet sizes separately

Compatibility

Designed for use with ER20-series collet chucks and toolholders accepting the ER20 collet standard.

Installation Notes

ER collets are installed and removed by a qualified machinist or toolroom technician using the appropriate ER20 collet nut and spanner wrench. Ensure the spindle or collet chuck is fully de-energized and at a complete stop before changing collets. Inspect the collet bore and chuck taper for chips or contamination before seating the collet. Do not exceed the maximum listed capacity for each individual collet size in the set.