Feature: 1. SPECIFICATIONS: This adapter is mainly used for reducing the diameter of taper shank bit, with inner taper of MT2 and outer taper of MT4. 2. 45 STEEL: The morse taper adapter is made of excellent 45 steel material, with overall quenching to ensure strong impact resistance. 3. GOOD PERFORMANCE: The morse reducing sleeve has a 0.015mm high accuracy and a hardness of 50HRC, ensuring stable and reliable operation. 4. APPLICABLE RANGE: Suitable for taper shank tool, taper shank bit, and taper shank reamer, easy to install and operate, improving work efficiency. 5. HIGH GLOSS: With exquisite craftsmanship, this taper drill sleeve has high internal and external smoothness, and will not scratch parts or hands. Specification: Item Type: Morse Taper Adapter Material: 45 Steel Hardness: 50HRC Application: For Reducing. Package List: 1 x Morse Taper Adapter