Accupro EJ01200000MSC Taper Drill Chuck Arbor JT2 1MT

Product Description

The ACCUPRO EJ01200000MSC is a taper drill chuck arbor designed to connect a Jacobs Taper 2 (JT2) drill chuck to a machine spindle with a No. 1 Morse Taper (1MT) shank. This arbor serves as the mechanical interface between the chuck and the spindle, transmitting torque and maintaining concentricity during drilling operations. With an overall length of approximately 3.58 inches (91 millimeters), it is compact and suited for benchtop drill presses, milling machines, and lathes equipped with a 1MT spindle. Machinists and toolroom technicians install this type of arbor when mounting or swapping drill chucks on light-duty machine tools.

This arbor is used in machine shop, maintenance, and toolroom environments where a JT2-mount chuck must be paired with a 1MT spindle. It is appropriate for residential shop equipment and light industrial machines alike. The 1MT shank fits snugly into the spindle socket via interference fit, while the JT2 taper accepts any compatible Jacobs-style drill chuck. No adhesives or set screws are required for a properly fitted installation.

Key Features

• JT2 Jacobs Taper mount accepts standard JT2 drill chucks
• No. 1 Morse Taper shank seats directly into 1MT machine spindles
• Compact overall length of approximately 3.58 inches (91 millimeters)
• Lightweight at 0.18 pounds, adding minimal mass to the spindle assembly
• Single-piece construction maintains chuck-to-spindle concentricity

Compatibility

Designed as an OEM-style replacement or standard arbor for machine tools equipped with a No. 1 Morse Taper spindle socket and requiring a JT2 Jacobs Taper chuck mount.

Installation Notes

Installation is performed by machinists or qualified toolroom technicians. Power down and lock out the machine before removing or installing the arbor. Clean both the 1MT shank and the spindle socket thoroughly to remove chips, oil film, and burrs before seating, as contamination will affect concentricity. Drive the arbor into the spindle with a soft mallet or arbor press; use a drift key through the spindle slot to remove it — never strike the chuck body directly.