Accupro EJ05300000MSC Taper Drill Chuck Arbor JT3 5MT

Product Description

The ACCUPRO EJ05300000MSC is a taper drill chuck arbor designed to connect a Jacobs Taper 3 (JT3) drill chuck to a machine spindle with a No. 5 Morse Taper (5MT) shank. It serves as the mechanical interface between the chuck and the machine, transmitting torque and maintaining concentricity during drilling operations. With an overall length of approximately 7.56 inches (192 millimeters) and a weight of 3.51 pounds, this arbor is built for use in drill presses, milling machines, and similar machine tool spindles. Installation is performed by machinists and tool room technicians.

This chuck arbor is suited for industrial and shop environments where a JT3-mount drill chuck must be seated onto a 5MT spindle. Typical applications include drill press setups and vertical milling machine operations where Morse Taper spindles are standard. The arbor allows for straightforward chuck installation and removal using a drift key, making it practical for tool changes in production and maintenance settings.

Key Features

• JT3 Jacobs Taper mount accepts standard JT3 drill chucks
• No. 5 Morse Taper shank fits 5MT spindle sockets on drill presses and mills
• Overall length of 192 millimeters (approximately 7.56 inches) for proper spindle engagement
• Weighs 3.51 pounds, indicating solid construction for rigidity under load
• Single-piece arbor design maintains chuck-to-spindle alignment

Compatibility

Designed as a direct-fit arbor for use with JT3-mount drill chucks installed in machine tool spindles with a No. 5 Morse Taper socket. Consult your machine documentation to confirm spindle taper size before installation.

Installation Notes

Installation and removal should be performed by a qualified machinist or tool room technician. Power down and lock out the machine before seating or drifting the arbor. The 5MT shank is driven into the spindle socket by hand or with a soft mallet and removed using a drift key through the spindle drift slot. Do not strike the chuck or arbor body directly with a steel hammer, as this can damage the taper surfaces and reduce concentricity.