Jacobs 33364 Keyless Drill Chuck JT33 Tapered Mount

Product Description

The JACOBS 33364 is a keyless drill chuck designed for use with tapered-mount drilling equipment using a JT33 arbor interface. It accepts drill bits and round-shank tooling ranging from 0.039 to 0.512 inches in capacity, covering the full range of common twist drill sizes for metal, wood, and plastic work. The chuck uses a ball bearing design and a steel body construction, providing consistent grip and durability under repeated use. It is installed by maintenance technicians, machinists, and tradespeople who require a reliable, hand-tightened chuck without a key. The closed length is 3.74 inches and the sleeve diameter is 1.73 inches.

The JACOBS 33364 is suited for benchtop drill presses, portable drilling equipment, and light-duty machine tool applications that accept a JT33 tapered arbor. Its keyless design allows for fast bit changes without a separate chuck key, making it practical in production and service environments where tooling changes are frequent. This chuck is a direct replacement option for worn or damaged keyless chucks on equipment originally fitted with JT33 tapered mounts.

Key Features

• Keyless tightening mechanism for fast, tool-free bit changes
• JT33 tapered mount interfaces directly with compatible arbors
• Ball bearing design supports smooth rotation and consistent grip
• Steel chuck body for durability in industrial and trade use
• Wide capacity range of 0.039 to 0.512 inches accommodates common drill shank sizes
• Sleeve diameter of 1.73 inches fits standard chuck guard clearances on most drill press configurations

Compatibility

Designed as an OEM-style replacement keyless drill chuck for drilling equipment fitted with a JT33 tapered arbor mount.

Installation Notes

Installation of this chuck onto a drill press or drilling machine should be performed with the machine fully powered down and locked out per OSHA lockout/tagout procedures. The chuck seats onto the JT33 tapered arbor by firm hand pressure or a light mallet tap using a soft-faced hammer against the chuck body. To remove, use a chuck removal wedge or drift through the spindle slot - never strike the chuck body directly with a steel hammer. Verify the taper is clean and free of debris before seating the new chuck to ensure a secure fit.