4-Piece Morse Taper Sleeve / Adapter Set (MPN: 3900-1850)
This listing is for a complete, 4-piece set of Morse Taper sleeves. This is the most common set required in any machine shop, allowing you to adapt smaller Morse Taper shank tools (like drill bits or reamers) to fit larger machine spindles.
Stop searching for individual adapters; this kit covers the most essential combinations from MT1 all the way to MT5.
Set Includes (4 Sleeves):
(1) MT1 (Internal) to MT2 (External)
(1) MT2 (Internal) to MT3 (External)
(1) MT3 (Internal) to MT4 (External)
(1) MT4 (Internal) to MT5 (External)
Technical Improvements: Hardened & Precision Ground
Not all taper adapters are made equal. This professional-grade set is manufactured for accuracy and durability.
Material: Made from high-grade tool steel and fully hardened to resist wear, burrs, and damage.
Precision Finish: Ground on BOTH the internal and external tapers. This is the most critical feature.
Why it matters: A fully ground surface ensures a perfect, concentric fit with both your machine spindle and your tool. This minimizes runout (wobble) and guarantees that your drill bits spin true.
Standard Design: All sleeves feature a tanged end and a standard drift slot for easy removal of the tool with a drift key.
Common Applications
Drill Press: Use an MT2 drill bit in an MT3 or MT4 spindle.
Lathe: Mount an MT1 live center in an MT3 tailstock.
Milling Machine: Adapt tapered shank tools for your mill.
