Enhance your machining and drilling precision with this high-quality MT shank taper reducing drill sleeve set, designed to adapt taper shank drills and reamers efficiently. Crafted from premium 45# steel, these reducing drill sleeves are built for durability and long-lasting performance, making them an essential tool for professionals and hobbyists requiring accurate taper shank reduction. Key Features: · Premium 45# Steel Construction: Ensures robust strength, wear resistance, and reliable durability for extended use in demanding workshop environments. · Overall Quenching Process: The drill sleeves undergo a comprehensive quenching treatment, providing superior hardness (HRC58), strong shock resistance, and enhanced lifespan. · High Precision Design: Both the internal and external surfaces are finely machined to achieve smoothness and high accuracy, ensuring a secure fit and optimal performance. · Practical and Easy to Maintain: Compact and straightforward to store, these taper adapters require minimal maintenance, offering convenient usability and long-term practicality. · Versatile Compatibility: Specifically designed for use with MT shank taper drills and reamers, these reducing sleeves accommodate various size transitions with ease. Specifications: · Material: 45# Steel · Hardness: HRC58 · Model & Size Details:  - MT1 to MT2: Length 92mm (3.62in), Bottom Hole Diameter 12mm (0.47in)  - MT2 to MT3: Length 112mm (4.41in), Bottom Hole Diameter 17mm (0.67in)  - MT3 to MT4: Length 133mm (5.24in), Bottom Hole Diameter 23mm (0.91in) · Weight: 569g Package Includes: · 1 x MT1 to MT2 Taper Adapter · 1 x MT2 to MT3 Taper Adapter · 1 x MT3 to MT4 Taper Adapter This taper reducing drill sleeve set is engineered to deliver precise and reliable taper shank reduction, enhancing your drilling and reaming operations. Its sturdy construction and smooth finish ensure consistent performance and ease of use, making it a practical addition to any machining toolkit.