Value Collection SC00186544 MT5 to MT4 Taper Extension Adapter

Product Description

The VALUE COLLECTION SC00186544 is a Morse taper extension adapter designed for machine tool applications where additional spindle reach or taper conversion is required. It accepts an MT5 inside taper and presents an MT4 outside taper, allowing a technician to extend tooling depth or adapt between two common Morse taper sizes within a drill press, lathe, or milling machine spindle. The body is constructed from medium carbon steel and features a soft shank with a hardened tang, providing resistance at the drive point where force is transferred. Overall length is 11-7/8 inches. Machinists, tool and die technicians, and machine shop operators are the primary installers.

This adapter is used in machine shop and production environments where spindle tapers must be extended or matched to tooling with a different Morse taper size. Typical applications include adapting an MT4 taper spindle to accept MT5 tooling holders, or extending reach to accommodate deeper workpiece setups. It is suited for stationary machine tools running standard Morse taper tooling in both light production and job shop settings.

Key Features

• MT5 inside taper accepts standard MT5 shanks and tooling
• MT4 outside taper seats directly into MT4 spindles or holders
• 11-7/8 inch overall length provides extended reach for deep setups
• Medium carbon steel construction for durability under machine tool loads
• Soft body with hardened tang resists drive-point wear and tang fracture

Compatibility

Designed as an OEM-style replacement or tooling-room addition for machine tools equipped with MT4 spindle bores requiring MT5 inside taper tooling adaptation.

Installation Notes

Installation is performed by qualified machinists or machine tool technicians. Power down and lock out the machine spindle before seating or removing any taper adapter. Ensure both the spindle bore and the adapter taper surfaces are clean and free of chips or burrs before insertion, as debris will prevent full taper contact and cause runout. Remove the adapter with a proper drift through the spindle drift slot rather than striking the tooling directly.