Value Collection SC00187542 MT5 to MT4 Morse Taper Extension

Product Description

The VALUE COLLECTION SC00187542 is a Morse taper extension adapter designed to connect MT5 inside taper sockets to MT4 outside taper tooling in machine tool spindles and drill press quills. The adapter extends reach and allows use of MT4-shank tooling in MT5-socket machines without removing or replacing the host spindle. At 11-7/8 inches overall length, it provides meaningful extension while maintaining the rigid, self-holding taper geometry that machinists depend on for accurate drilling and boring. The body is medium carbon steel, hardened and ground throughout for dimensional accuracy and long service life under cutting loads.

This adapter is suited for metalworking and machining environments where an MT5-spindle machine must accept MT4-shank tools such as drill chucks, end mill holders, or boring heads. Typical applications include knee mills, radial arm drills, and lathe tailstocks equipped with MT5 spindles. The hardened and ground construction makes it appropriate for production environments where repeated tool changes and high-cycle use are the norm. A licensed machinist or tool and die professional handles installation and removal.

Key Features

• MT5 inside taper accepts MT5-shank tooling or drift removal
• MT4 outside taper seats into MT5 spindle sockets
• 11-7/8 inches overall length for extended reach applications
• Medium carbon steel construction for strength and rigidity under cutting loads
• Hardened and ground throughout for precise taper fit and repeatable runout

Compatibility

Designed as an OEM-style extension adapter for machine tool spindles with an MT5 inside socket requiring MT4 outside taper tool shanks.

Installation Notes

Power down and lock out the machine spindle before installing or removing any taper adapter. Clean both the spindle socket and the adapter taper surfaces thoroughly — oil, chips, or grit will cause taper seating errors and runout. Drive the adapter fully into the spindle socket with a soft-face mallet; never use a steel hammer directly on the taper. Use the appropriate drift and drift slot to eject the adapter without damaging the spindle bore.