Enhance your machining efficiency with this high-quality Taper Drill Sleeve, expertly crafted from durable 45# steel for long-lasting performance and wear resistance. Featuring an overall quenching process, this tool offers exceptional shock resistance and outstanding toughness, making it ideal for demanding industrial applications. Precision ground both inside and outside, the taper drill sleeve guarantees high concentricity and smooth finishes to improve the accuracy of your taper shank cutters, drills, and reamers. Key Features: · Premium 45# Steel Construction: Ensures durability, excellent wear resistance, and an extended service life under rigorous use. · Overall Quenching Process: Provides strong shock resistance and superior hardness with a rating of 50 HRC, enhancing tool longevity and reliability. · Precision Ground Finish: Delivers high accuracy and fine workmanship with smooth internal and external surfaces, reducing tool runout and improving machining quality. · Versatile Compatibility: Designed for taper shank cutter, taper shank drill, and taper shank reamer applications, boosting work efficiency in various machining tasks. · Multiple Size Options: Available in four types (MT1 to MT2, MT2 to MT3, MT3 to MT4, MT4 to MT5) to fit a wide range of machine spindles and tools. · Easy Storage and Maintenance: Compact and user-friendly design facilitates convenient storage and upkeep for professional or hobby use. Specifications: · Material: 45# Steel · Hardness: 50 HRC · Types Available: MT1 to MT2, MT2 to MT3, MT3 to MT4, MT4 to MT5 (Optional) · Dimensions and Weight (varies by type):  - MT1 to MT2: Outer Diameter 17.78mm, Inner Diameter 12.065mm, Length 92mm, Weight 89g  - MT2 to MT3: Outer Diameter 23.825mm, Inner Diameter 17.78mm, Length 112mm, Weight 174g  - MT3 to MT4: Outer Diameter 31.267mm, Inner Diameter 23.825mm, Length 140mm, Weight 350g  - MT4 to MT5: Outer Diameter 44.399mm, Inner Diameter 31.267mm, Length 171mm, Weight 1000g Package Includes: · 1 x Taper Drill Sleeve This precision-engineered taper drill sleeve is an essential accessory for improving torque transmission and tool stability in heavy-duty cutting operations. Its robust construction and precise taper fit ensure efficient machining performance, making it a reliable choice for professionals seeking enhanced productivity and tool longevity.