Value Collection 54100574 Keyless Drill Chuck R8 1/2 Inch

Product Description

The VALUE COLLECTION 54100574 is a keyless drill chuck designed for use with R8-spindle milling machines and drill presses. It accepts round-shank tooling from 1/64 inch up to 1/2 inch in diameter and mounts via an integral taper shank, allowing direct installation into R8 collet-style spindles without an adapter. The keyless design allows the operator to tighten and release cutting tools by hand, eliminating the need for a chuck key during tool changes. The sleeve diameter measures 50.5 mm. At 3.19 pounds, this chuck is built for sustained shop use across a range of drilling and light milling applications.

This chuck is suited for vertical milling machines and benchtop drill presses equipped with an R8 spindle. It is commonly found in job shops, machine shops, and maintenance facilities where frequent tool changes are required. The keyless mechanism speeds up bit swaps during production or repair work. It handles standard twist drills, step drills, and similarly shanked tooling within its stated capacity range.

Key Features

• Keyless design allows hand-tightening for fast, tool-free bit changes
• Accepts tooling from 1/64 inch to 1/2 inch shank diameter
• R8 integral taper shank mounts directly to R8-spindle machines
• 50.5 mm sleeve diameter provides a secure gripping surface
• Taper shank mount delivers rigid, concentric tool holding

Compatibility

Designed as a direct-mount replacement or upgrade chuck for milling machines and drill presses equipped with an R8 spindle interface.

Installation Notes

Installation should be performed by a qualified machinist or tool-room technician. Power down and lock out the machine at the main disconnect before removing or installing the chuck. Insert the R8 taper shank fully into the spindle bore and secure according to the machine manufacturer's draw-bar torque procedure. Inspect the spindle bore and chuck taper for debris or damage before seating the chuck.