Value Collection SC00187351 Morse Taper Adapter MT3 MT5

Product Description

The VALUE COLLECTION SC00187351 is a Morse taper extension adapter designed to bridge an MT3 inside taper to an MT5 outside taper. It extends tool reach in lathe, mill, or drill press setups where a standard taper size mismatch exists between the spindle and tooling. The adapter measures 10.5 inches overall length and is machined from medium carbon steel that has been hardened and ground throughout, providing consistent taper contact and resistance to wear under production loads. Licensed machinists and machine tool technicians are the primary installers of this type of tooling adapter.

This adapter is suited for use in machine shop environments where an MT3 tool or arbor must seat into an MT5 spindle socket. Typical applications include bridging spindle-to-toolholder size differences on drill presses, milling machines, and lathes. The hardened and ground finish on both tapers ensures accurate alignment and reliable seating. It is appropriate for both production and maintenance machining operations where taper extension is needed without introducing runout or fit degradation.

Key Features

• MT3 inside taper accepts standard MT3 tooling and arbors
• MT5 outside taper seats directly into MT5 spindle sockets
• 10.5 inch overall length provides extended reach between spindle and tool
• Medium carbon steel construction with hardened and ground finish throughout
• Hardened and ground tapers ensure accurate alignment and consistent fit

Compatibility

Designed as an OEM-style replacement and standard adapter for machine tool spindles accepting an MT5 outside taper with MT3 inside taper tooling.

Installation Notes

Installation should be performed by a qualified machinist or machine tool technician. Power down and lock out the machine spindle completely before inserting or removing any taper adapter. Clean both the spindle socket and the adapter tapers thoroughly before seating to ensure full contact and prevent fretting. Never strike the adapter with a steel hammer directly; use a proper drift and soft-face mallet at the drift slot to release the adapter from the spindle.