Value Collection 204-1612 ER16 Collet 3/16 Inch

Product Description

The VALUE COLLECTION 204-1612 is an ER16 series collet designed for use in CNC machining centers, milling machines, and tool holders that accept the ER16 collet standard. With a decimal bore size of 0.1874 inches (fractional equivalent 3/16 inch), this collet provides a secure grip on round shank cutting tools such as end mills, drills, and reamers. The total indicator runout (TIR) rating of 0.0005 inches ensures close concentricity tolerances suitable for precision machining applications. Machinists and toolroom technicians install and replace ER collets as part of routine tooling changeouts on compatible spindle noses and collet chucks.

This collet is suited for use in shops performing light to medium milling, drilling, and reaming operations where a 3/16 inch shank tool must be held with minimal runout. ER16 collets are among the most widely used collet standards in small-format CNC and manual machining setups. The 204-1612 fits any ER16-compatible collet chuck or tool holder and is appropriate for production environments, tool cribs, and maintenance machining applications where consistent clamping performance is required.

Key Features

• ER16 collet series for broad compatibility with ER16-standard tool holders and collet chucks
• 0.1874 inch (3/16 inch) bore diameter for secure grip on matching round shank tooling
• 0.0005 inch TIR for precision concentricity in close-tolerance machining operations
• Lightweight at 0.07 pounds for easy handling during tooling changeouts
• Sold individually, allowing single-piece replacement without excess inventory

Compatibility

Designed as a direct-fit replacement for ER16-standard collet chucks and tool holders accepting a 0.1874 inch (3/16 inch) bore collet.

Installation Notes

ER collets are installed and removed by machinists or toolroom technicians using an appropriate ER16 collet nut and spanner wrench rated for the collet series. Before changing collets, de-energize and lock out the machine spindle per applicable lockout/tagout procedures. Inspect the collet bore and collet chuck taper for chips or damage before seating the collet. Do not exceed the collet clamping range or use the collet to hold shanks outside its rated bore size, as this reduces grip force and concentricity.