Features 1、Can improve the rigidity of the tool and extend the life of the blade. 2、Convenient clamping, automatic centering, the height of center is more accurate center. 3、Suitable for U drill, center drill, inner diameter cutter rod, straight shank cutter and so on. 4、D25 is applicable to SBHA20-25 and SBHA25-25. 5、Casted from premium 40Cr material, high hardness, high strength, not easy to break. Specification Condition: 100% Brand New Item Type: CNC Lathe Tool Holder Bushing Material: High Quality Steel 40Cr D40 Applicable Tool Holder: SBHA20-25 SBHA25-25 D25-5: Handle Diameter (Outer Hole Diameter): Approx. 25mm / 1in Inner Hole Diameter: Approx. 5mm / 0.2in D25-6: Handle Diameter (Outer Hole Diameter): Approx. 25mm / 1in Inner Hole Diameter: Approx. 6mm / 0.24in D25-7: Handle Diameter (Outer Hole Diameter): Approx. 25mm / 1in Inner Hole Diameter: Approx. 7mm / 0.28in D25-8: Handle Diameter (Outer Hole Diameter): Approx. 25mm / 1in Inner Hole Diameter: Approx. 8mm / 0.31in Package List 1 x Tool Holder Bushing