Accupro PN01307000MSC Keyless Drill Chuck 1/2 in JT33

Product Description

The ACCUPRO PN01307000MSC is a keyless drill chuck designed for use with tapered-spindle drilling equipment. It accepts round-shank drill bits and tooling from 1/32 inch to 1/2 inch in diameter, secured through a JT33 Jacobs taper mount. The keyless sleeve design allows for hand-tightening and quick bit changes without a separate chuck key. Internal ball bearings support smooth, concentric rotation at spindle speeds up to 10,000 RPM. The chuck body is constructed from steel for durability under repeated use. It is installed by machinists and toolroom technicians on drill presses, lathes, and milling machines requiring a JT33 taper interface.

This chuck suits benchtop and floor-model drill presses used in production, maintenance, and toolroom environments. Its 1/2 inch maximum capacity covers a wide range of standard twist drills, step drills, and similar tooling. The keyless design is well-suited to applications involving frequent bit changes. The JT33 taper mount is a common standard on light- to medium-duty drilling spindles, making this chuck a practical direct replacement in many shop setups. No specific OEM model compatibility is stated in available product data.

Key Features

• Keyless sleeve for tool-free bit changes without a chuck key
• JT33 Jacobs taper mount for direct spindle installation
• Capacity range from 1/32 inch to 1/2 inch (0.0313 to 0.5000 inches)
• Ball bearing construction supports smooth rotation up to 10,000 RPM
• Steel chuck body for shop-floor durability
• Closed length of 4.055 inches and open length of 3.583 inches for compact spindle clearance

Compatibility

Designed for drill presses, lathes, and similar drilling equipment with a JT33 Jacobs taper spindle. No specific model compatibility data was provided in available product information.

Installation Notes

Installation is performed by a machinist or toolroom technician. Power down and lock out the machine before mounting or removing the chuck. The JT33 taper is seated by pressing the chuck firmly onto the spindle; a chuck removal wedge or arbor press is typically used for disassembly. Inspect the spindle taper and chuck bore for debris or damage before seating to ensure concentric runout.