Value Collection SC00187468 MT4 to MT6 Morse Taper Extension

Product Description

The VALUE COLLECTION SC00187468 is a Morse taper extension adapter used to extend reach between machine spindles and tooling in milling, drilling, and lathe applications. It accepts an MT4 inside taper and presents an MT6 outside taper, allowing tools or arbors with a smaller taper shank to seat in larger-spindle machines. The adapter measures 14 inches overall length and is manufactured from medium carbon steel that has been hardened and ground throughout for dimensional accuracy and long service life. Licensed machinists, tool-and-die technicians, and machine shop professionals are the primary users of this adapter.

This adapter is suited for metalworking machine tools equipped with a No. 6 Morse taper spindle where an MT4 tool, drill, or arbor must be used. Typical installations include vertical mills, drill presses, lathes, and boring machines requiring taper-to-taper extension in production or maintenance environments. The 14-inch overall length makes it appropriate for applications where additional spindle-to-workpiece clearance is required. It is sold individually and ships as a single unit.

Key Features

• MT4 inside taper accepts standard No. 4 Morse taper tooling and arbors
• MT6 outside taper seats directly into No. 6 Morse taper machine spindles
• 14-inch overall length provides extended reach for deep-clearance applications
• Hardened and ground throughout for consistent taper geometry and repeatable tool runout
• Medium carbon steel construction resists deflection under cutting loads

Compatibility

Designed as an OEM-style replacement and standard fitment adapter for machine tools equipped with a No. 6 Morse taper spindle requiring No. 4 Morse taper tooling.

Installation Notes

Installation of Morse taper adapters is performed by qualified machinists or maintenance technicians. Before installation, power down and lock out the machine spindle per OSHA lockout/tagout procedures. Clean both the spindle bore and the adapter taper with a lint-free cloth to remove any chips, oil, or debris that could cause misalignment or damage to the taper surfaces. Drive the adapter firmly into the spindle using a draw bar where the machine design permits, and never use the adapter without confirming full taper engagement to prevent tool pullout during cutting operations.