Value Collection 231-2113 R8 Collet Set 13 Pc 1/8-7/8 in

Product Description

The VALUE COLLECTION 231-2113 is a 13-piece R8 collet set designed for use with Bridgeport-style vertical milling machines and other equipment accepting the R8 spindle taper. The set covers a capacity range from 0.125 inches to 0.875 inches in 1/8-inch increments, giving machinists a complete range of common end mill and cutter shank sizes in a single kit. A 15-piece storage rack is included to keep collets organized and protected at the workstation. Weighing 11 pounds, the set is substantial enough for production-environment demands. Machinists, toolroom technicians, and machine shop operators are the primary installers and users of this tooling.

This collet set is suited for manual vertical milling operations in job shops, production machining environments, and vocational training facilities. The R8 taper is the most widely used spindle interface on knee mills found in small and mid-size machine shops across North America. With collets sized at 1/8, 3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, and 7/8 inch, the set addresses virtually every standard end mill shank diameter encountered in day-to-day milling work. The included rack keeps all 13 collets accessible and prevents damage to the precision-ground bores between uses.

Key Features

• R8 collet system compatible with Bridgeport-style knee mills and other R8-spindle machines
• 13 collets spanning 0.125 to 0.875 inches in 1/8-inch increments
• Covers all 13 standard sizes: 1/8, 3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, and 7/8 inch
• Includes a 15-piece storage rack for organized bench or toolroom storage
• Set weight of 11 pounds reflects solid, production-grade construction
• Sold as a complete kit — no individual collet sourcing required for standard shank sizes

Compatibility

Designed for use with R8-spindle milling machines. No specific machine model compatibility data was provided by the manufacturer for this part number.

Installation Notes

R8 collets are installed and removed by a machinist or toolroom technician — always de-energize and lock out the milling machine before changing tooling. Ensure the spindle bore and collet taper are clean and free of chips or debris before seating the collet. Use the correct drawbar wrench to tighten the drawbar to adequate engagement; overtightening can distort the collet bore and undertightening risks tool pullout during cutting. Inspect collet bores regularly for wear or out-of-round conditions that can affect runout.