Features Durable Material: The knife holder bushing is made of high-quality high-quality steel 40Cr material, which has high hardness, high strength, and is not easy to break. Ideal for your lathe work. Function: The tool holder lathe bushing can improve the rigidity of the tool, prolong the life of the blade, make your lathe tool holder work more smoothly, save time and effort. Flexible and Convenient: The boring bar reducer is quenched and finely ground, with high hardness, good texture, convenient installation, automatic centering, convenient clamping, flexible and convenient, and more accurate use. Precise: Easy clamping, automatic centering, more accurate center height, our tool holder bushings are carefully crafted in every link from design to production, and constantly innovate to manufacture products in a more standardized and scientific way. Application: Our CNC lathe tool holder bushings have three types: D25-MT1, D25-MT2, D25-MT3, which can be widely used in shank diameter taper shank drills, taper shank milling cutters, etc. D25 for SBHA20-25 and SBHA25-25. Specification: Item Type: CNC Lathe Tool Holder Bushing Material: High Quality Steel 40Cr D40 Applicable Tool Holder: SBHA20-25 SBHA25-25 Optional Model: D25-MT1, D25-MT2, D25-MT3 Handle Diameter (Outer Hole Diameter): Approx. 25mm / 1in Package List: 1 x Tool Holder Bushing Package List 1 x Tool Holder Bushing