Value Collection 214-8035 MT3 to MT5 Reducing Sleeve

Product Description

The VALUE COLLECTION 214-8035 is a standard Morse taper reducing sleeve designed to adapt an MT3 inside taper to an MT5 outside taper. It allows a tool or accessory with an MT3 shank to seat securely in a machine spindle or socket bored to MT5. The sleeve features a soft body with a hardened tang, which provides durability at the drive point while keeping the body machinable if needed. Overall length is 156 millimeters with a body diameter of 44.7 millimeters and a 0.25-inch tang projection. Machinists and tool room technicians use this sleeve in mill, lathe, and drill press applications where spindle and tooling taper sizes differ.

This reducing sleeve is used in machine shop environments where MT3 tooling must interface with MT5 spindles or sockets. Typical applications include drill presses, milling machines, and lathes equipped with MT5 spindles running MT3 drill chucks, end mill holders, or other cutting tool holders. It is a direct-fit solution for production and maintenance machining operations where taper adapters are routinely used to maximize tooling versatility without retooling the machine spindle.

Key Features

• MT3 inside taper accepts standard MT3 shank tooling
• MT5 outside taper fits MT5 spindles and sockets
• Soft body with hardened tang for durability at the drive point
• 0.25-inch tang projection for positive ejection
• 156-millimeter overall length with 44.7-millimeter body diameter
• Single-piece sleeve construction for reliable taper-to-taper alignment

Compatibility

Designed as a standard reducing sleeve for machine spindles and tool holders bored to MT5 that require MT3 shank tooling fitment.

Installation Notes

Installation is performed by qualified machinists or tool room personnel. Clean both the spindle bore and sleeve tapers thoroughly before insertion to ensure full contact and proper seating. Power down and lock out the machine before inserting or removing any taper tooling. Use the hardened tang with a drift key and mallet to eject the sleeve cleanly from the spindle without damaging the taper surfaces.