Value Collection SC00187146 MT1 to MT4 Morse Taper Adapter

Product Description

The VALUE COLLECTION SC00187146 is a Morse taper extension adapter used to connect MT1 inside taper tooling to MT4 outside taper spindles or sockets. The adapter extends reach and bridges taper size mismatches on drilling machines, lathes, and milling equipment. Constructed from medium carbon steel that is hardened and ground throughout, it delivers a consistent, accurate fit under the repeated loading typical of metal-cutting operations. Overall length is 7.5 inches. This type of adapter is installed by machinists and tool-room technicians as a standard setup component when spindle and tool taper sizes do not match directly.

This adapter suits machine shop and production environments where MT1 drill chucks, tooling arbors, or accessories must seat into MT4 spindles or quills. Typical applications include drill press setups, turret lathe tailstocks, and manual milling machine spindles that carry MT4 sockets. The hardened and ground finish supports precision alignment and repeated installation and removal without galling or dimensional loss.

Key Features

• MT1 inside taper accepts standard MT1 tooling and arbors
• MT4 outside taper seats into MT4 spindles and sockets
• Hardened and ground throughout for dimensional accuracy and wear resistance
• Medium carbon steel construction handles typical drilling and boring loads
• 7.5 inch overall length provides extension between mismatched taper sizes

Compatibility

Designed for use with MT4 spindles or sockets requiring MT1 inside taper tooling on drill presses, lathes, and milling machines. Specific machine model compatibility should be confirmed against spindle taper specifications before installation.

Installation Notes

Installation is performed by machinists or tool-room technicians. Power down and lock out the machine spindle before seating or removing the adapter. Clean both the adapter taper surfaces and the receiving spindle bore thoroughly before insertion to ensure full taper contact and prevent fretting. Remove using a properly sized drift and drift slot — never use impact tools directly on the adapter body.