3MT To 4MT Hardened Morse Taper Drill Sleeve

Description 3 MT To 4 MT Hardened & Ground Morse‑Taper Drill Sleeve This precision Morse-taper sleeve allows tools with a 3 MT (internal) shank to be used in a 4 MT (external) spindle or socket, increasing the flexibility of your machining setup. Built for durability and accuracy, it’s ideal for adapting smaller taper tooling to larger taper machine spindles. Key Features Taper Adaptation: Converts a 3 MT machine bore (or arbor) to accept 4 MT tooling, expanding the range of usable drill bits, reamers, or centres. Hardened & Precision-Ground: The taper surfaces are hardened and ground (internal and external), ensuring good fit, long service life, and accurate seating. Robust Performance: Made from high-quality steel, the sleeve is designed to withstand repeated use without deforming or losing taper integrity. Standards Compliance: Produced to conform to DIN 2185 taper sleeve standards for reliable form and tolerances. Tang / Ejector Slot (Depending on Design): Some variants have a tang or drift slot for safe removal; check the item with supplier. Why Choose This Sleeve? Maximise Tool Usage: Rather than discarding or replacing your MT3 tools, you can adapt them to work in a 4MT spindle. Cost-Effective: A simple sleeve is often cheaper than re-buying tools or changing spindle hardware. Precision Maintained: Thanks to the hardened and ground surfaces, the sleeve maintains alignment and repeatability. Durability: The tough construction ensures it can handle workshop stresses.