Jacobs JCM32282 Drill Chuck 3/8 in Keyed Threaded 3/8-24

Product Description

The JACOBS JCM32282 is a keyed drill chuck with a 3/8 inch maximum capacity and a 3/8-24 threaded mount. Built from steel, it accepts round-shank drill bits and other rotary tooling across its full capacity range. The sleeve diameter measures 1.43 inches, and the closed length is 2.5 inches, making it a compact, direct-mount chuck suited for benchtop drill presses, handheld drills, and light machine tool spindles. Tightening is performed with the included K30 key for positive grip and repeatable runout control. Machinists, maintenance technicians, and tool-room professionals install this chuck as a replacement or upgrade on threaded-spindle equipment.

This chuck is designed for use on drilling equipment with a 3/8-24 threaded spindle nose. Typical applications include light-duty drill presses, portable electric drills, and similar rotary tools found in production, maintenance, and fabrication environments. The plain bearing design keeps the profile simple and the unit easy to service. It handles both small-diameter bits near 0.039 inches and full 3/8 inch tooling without adapter changes, covering the range most commonly encountered in general mechanical and light manufacturing work.

Key Features

• 3/8 inch maximum capacity accepts a wide range of standard drill bits and rotary tooling
• 3/8-24 threaded mount for direct installation on compatible spindle noses
• Keyed design with K30 key provides secure, positive clamping force
• Steel chuck body for durability in production and maintenance use
• 1.43 inch sleeve diameter and 2.5 inch closed length for compact fitment
• Plain bearing construction simplifies maintenance and replacement

Compatibility

Designed as a direct-replacement keyed drill chuck for threaded-spindle drilling equipment with a 3/8-24 spindle nose thread.

Installation Notes

Installation is performed by a machinist or maintenance technician. Before mounting or removing the chuck, disconnect power to the drill or press and allow all rotating components to come to a complete stop. Thread the chuck clockwise onto the 3/8-24 spindle nose and secure it according to the equipment manufacturer's procedure. Use the K30 key to tighten the chuck jaws onto tooling before each use, and never operate the chuck with the key inserted in the socket.