Features 1. SPECIFICATION: External taper MT3, internal taper MT1, this Morse taper adapter offers high accuracy and smooth internal and external surfaces. 2. HIGH HARDNESS: Made from 45 steel with overall quenching process, the drill sleeve provides high hardness and strong impact resistance. 3. MULTI-PURPOSE: This reducing adapter is suitable for use with taper shank cutters, taper shank drill bits, and taper shank reamers, helping improve work efficiency. 4. WIDE USAGE: Compatible with CNC lathes, milling machines, drill presses, and other machine tools. 5. LONG-LASTING: Designed for extended service life with high stability and reliability for prolonged use. Specification Item Type: MT1 to MT3 Morse Taper Adapter Material: 45 Steel Application: Reducing the diameter of Morse taper shank drill bits Hardness: 50 HRC Package List 1 x MT1 to MT3 Morse Taper Adapter