Accupro CSS06180910MSC Drill Chuck Threaded 5/16-24 Keyed

Product Description

The ACCUPRO CSS06180910MSC is a keyed drill chuck designed for threaded-mount spindles with a 5/16-24 thread size. It accepts drill bits and tooling from 0.02 to 0.291 inches in capacity, making it suitable for a wide range of drilling operations on benchtop and floor-standing drill presses. The chuck body is constructed from stainless steel and uses a plain bearing design. A K1M key is included for tightening and releasing tooling. At 0.25 pounds, this is a compact, lightweight chuck suited to precision and general-purpose drilling applications in machine shops, fabrication environments, and trade installations.

This drill chuck is intended for use on drill presses, milling machines, or other spindle-driven equipment that accepts a 5/16-24 threaded mount. The 28.4 mm sleeve diameter and plain bearing construction make it appropriate for lower-speed, high-precision drilling tasks. It is commonly installed by machinists, tool-and-die professionals, and skilled tradespeople performing precision hole-making work on metal, plastic, or composite materials.

Key Features

• Capacity range of 0.02 to 0.291 inches accommodates a broad selection of drill bits and small tooling
• Stainless steel chuck body for corrosion resistance and durability in shop environments
• Threaded mount with 5/16-24 thread size for direct spindle installation
• Keyed design with included K1M key provides positive grip and secure tooling retention
• Plain bearing construction suits lower-speed precision drilling applications
• Compact sleeve diameter of 28.4 mm fits confined work envelopes

Compatibility

Designed as a direct threaded-mount replacement or upgrade chuck for spindles with a 5/16-24 thread. Verify spindle thread size and direction before installation.

Installation Notes

Installation should be performed by a qualified machinist or tradesperson familiar with spindle tooling. Power down and lock out the machine at the disconnect before removing or installing any chuck. Ensure the spindle thread is clean and free of debris before threading on the chuck. Do not overtighten by impact or with makeshift tools; use proper chuck keys and spindle-locking methods as specified by the machine manufacturer.