Accupro CPM13090300MSC Keyless Drill Chuck 1/2 in 3/8-24

Product Description

The ACCUPRO CPM13090300MSC is a keyless drill chuck designed for threaded-mount installation on portable drills and drill presses used in machining and fabrication environments. It accepts bit shanks from 1/16 inch up to 1/2 inch, covering the full range of standard twist drills, step bits, and driver bits common in trade work. The chuck uses a ball bearing design for smooth tightening and consistent bit retention under load. The sleeve diameter measures 43 millimeters, and the unit is machined from steel for durability in production and maintenance applications. An M5 screw is included for secure mounting.

This chuck is suited for use in light manufacturing, mechanical contracting, and tool-room settings where a reliable, tool-free bit change is needed. The keyless design allows fast one-handed bit swaps without a separate chuck key, reducing downtime during repetitive drilling tasks. The 3/8-24 threaded mount is a widely used spindle standard, making this chuck a practical fit for a broad range of benchtop and handheld drilling equipment used by machinists, pipefitters, and general maintenance technicians.

Key Features

• Keyless operation allows tool-free bit changes with one hand
• Capacity range of 1/16 inch to 1/2 inch accommodates standard twist drills and driver bits
• Ball bearing construction supports smooth chuck action and consistent clamping force
• Steel chuck body provides durability in production and maintenance use
• 43-millimeter sleeve diameter for a secure grip surface
• Includes M5 mounting screw

Compatibility

Designed as a threaded-mount replacement or upgrade chuck for drills and drill presses equipped with a 3/8-24 spindle thread.

Installation Notes

Installation should be performed by a qualified machinist or maintenance technician. Disconnect and lock out the drill or drill press from its power source before removing the existing chuck or installing this unit. Thread the chuck onto the spindle by hand first to avoid cross-threading, then secure with the included M5 screw. Verify bit clamping and runout before returning the tool to service.