Value Collection 214-8046 MT4 to MT6 Reducing Sleeve

Product Description

The VALUE COLLECTION 214-8046 is a standard Morse taper reducing sleeve designed to adapt an MT4 inside taper to an MT6 outside taper on milling machines, lathes, and drill presses. The sleeve features a soft body with a hardened tang, providing the durability needed for repeated tool changes in production and maintenance environments. With an overall length of 218 millimeters and a body diameter of 63.8 millimeters, this sleeve is sized for use in larger spindle applications where an MT6 socket must accept MT4-shank tooling. A 3/8-inch projection is included at the tang end. Machinists, toolroom technicians, and machine maintenance professionals are the primary installers of this component.

This reducing sleeve is used wherever an MT6 spindle or quill must accept MT4-shank tools such as drill chucks, end mill holders, or arbors. Typical applications include manual and CNC knee mills, floor-standing drill presses, and lathe tailstocks fitted with MT6 bores. The sleeve allows shops to maximize tooling versatility without purchasing additional dedicated MT6-shank tooling, making it a practical addition to a general toolroom inventory.

Key Features

• Adapts MT4 inside taper to MT6 outside taper for spindle compatibility
• Soft body construction with hardened tang for wear resistance at the ejection point
• 218-millimeter overall length suits larger machine spindles
• 63.8-millimeter body diameter sized for MT6 sockets
• 3/8-inch tang projection for standard drift-key removal
• Sold individually — minimum order quantity of one

Compatibility

Designed as an OEM-style replacement or supplemental tooling adapter for machine spindles with an MT6 bore requiring MT4-shank tooling acceptance.

Installation Notes

Installation is performed by machinists or toolroom technicians. Before inserting or removing the sleeve, ensure the machine spindle is fully stopped and de-energized. Clean both the sleeve taper and the spindle bore thoroughly before seating to prevent fretting or tool pull-out during operation. Use a proper drift key through the spindle slot to remove the sleeve — never strike the tooling or spindle directly with a hammer.