Accupro CRS420000 Morse Taper Reducing Sleeve MT2 MT4

Product Description

The ACCUPRO CRS420000 is a standard Morse taper reducing sleeve designed to adapt an MT2 inside taper to an MT4 outside taper. It features a soft body with a hardened tang, providing durability at the drive point where stress is highest. With an overall length of 4-7/8 inches and a 0.25 inch projection, this sleeve allows machinists and toolroom technicians to run MT2-shank tooling in MT4 spindles or sockets without modification to the machine or tool. It is a single-piece passive adapter with no moving parts, making installation and removal straightforward.

This reducing sleeve is used in machine shop and metalworking environments where a milling machine, drill press, or lathe spindle is bored to an MT4 taper but the cutting tool or drill chuck carries an MT2 shank. It is well suited for production and job-shop applications where quick tooling changes between different taper sizes are routine. The hardened tang engages a drift slot for clean removal without damaging the sleeve or spindle bore.

Key Features

• MT2 inside taper accepts MT2-shank tooling directly
• MT4 outside taper seats into MT4 spindles and sockets
• Soft body construction with hardened tang for reliable drift removal
• 0.25 inch projection for proper seating depth
• 4-7/8 inch overall length suits standard MT4 spindle depths

Compatibility

Designed as an OEM-style fit for MT4 spindles requiring MT2 shank tooling, consistent with standard Morse taper dimensional specifications used across drill presses, milling machines, and lathes.

Installation Notes

A qualified machinist or toolroom technician should install this sleeve. Power down and lock out the machine before inserting or removing the sleeve. Clean both the sleeve and spindle bore of chips and oil before seating to ensure full taper contact. Use a proper drift bar in the spindle drift slot to remove the sleeve; do not attempt to hammer the sleeve out from the tool end.