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The VALUE COLLECTION SC00185157 is a Morse Taper to Straight Shank adapter designed for use in machine tool setups where an MT4 inside taper socket must accept a straight shank toolholder or arbor. Constructed from medium carbon steel that has been hardened and ground throughout, this adapter provides consistent dimensional accuracy and resistance to wear under repeated use. The 6-inch overall length suits a range of spindle depth requirements on drill presses, lathes, and milling machines. Machinists, tool and die workers, and machine shop technicians install this type of adapter to extend or convert spindle taper configurations without replacing the host machine spindle.
This adapter is suited for metalworking applications in job shops, maintenance facilities, and production environments. It converts an MT4 inside taper to a straight shank interface, allowing the use of straight shank tooling in MT4-equipped spindles or tailstocks. Typical installations include drill press tailstocks, lathe tailstocks, and vertical milling machine spindles where MT4 is the standard socket size. The hardened and ground construction supports use with standard cutting speeds and feed rates appropriate to the host machine capacity.
Designed as an OEM-style replacement and standard fitment adapter for machine tool spindles and tailstocks with an MT4 inside taper socket requiring a straight shank interface.
Installation is performed by qualified machinists or tool room technicians. Before inserting or removing the adapter, power down and lock out the machine spindle drive in accordance with OSHA lockout/tagout procedures. Clean the MT4 socket and the adapter taper thoroughly before seating to prevent false engagement or runout. Use a proper drift key and soft mallet to eject the adapter from the spindle socket — never strike the toolholder or cutting tool directly.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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