Value Collection 231-0011 R8 Collet Set 11 Pc

Product Description

The VALUE COLLECTION 231-0011 is an 11-piece R8 collet set designed for use with milling machines that accept the R8 spindle taper. The set covers a capacity range of 1/8 inch to 3/4 inch, with collets supplied in 1/16-inch increments. Total runout (TIR) is rated at 0.0007 inches, providing the concentricity required for accurate milling operations. The set is handled by machinists and tool-and-die technicians working on vertical milling machines equipped with R8 spindles. All 11 collet sizes are included in a single package.

This collet set is suited for vertical knee mills and similar R8-spindle machines found in job shops, maintenance departments, and trade training environments. The full 11-piece range allows the operator to chuck a wide variety of end mills, drill bits, and round-shank tooling without changing collet systems. The 1/16-inch size progression covers the most common shank diameters encountered in general milling work. At 7 pounds, the set is substantial enough for daily shop use.

Key Features

• R8 collet system compatible with R8-spindle vertical milling machines
• 11-piece set covering 1/8 inch through 3/4 inch in 1/16-inch increments
• TIR of 0.0007 inches for consistent tool concentricity
• Sizes included: 1/8, 3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, and 3/4 inch
• Complete set reduces the need for individual collet sourcing

Compatibility

Designed as a direct-fit replacement or supplemental set for vertical milling machines equipped with an R8 spindle taper.

Installation Notes

R8 collets are installed and removed by a qualified machinist using the machine spindle drawbar. Power down and de-energize the milling machine before changing collets. Inspect each collet bore and taper for chips or damage before seating. Do not overtighten the drawbar beyond hand-snug plus a firm turn, as this can distort the collet bore and increase runout.