Item Type: Tool Reducing Adapter Material: 40CrMo Cylinder Wall Inner Diameter: Approx. 20mm / 0.8in Cylinder Wall Outer Diameter: Approx. 25mm / 1in Overall Length: Approx. 70mm / 2.8in Applicable Morse Hole: MTA1, MTA2, MTA3 Package List 1 x Reducing Adapter 1 x Storage Box Match the appropriate model size when using 1WIDE APPLICATION: CNC lathe tool reducing adapter, can be installed into inner diameter turning toolholders, twist drill bit, U drill bit and extension rods, etc. 2AUTO POSITIONING: The reducing adapter has standard center hole, automatic positioning center height, with strong clamping and stable drilling. 3EXCELLENT MATERIAL: Using 40CrMo material, high temperature quenching and forming process, to ensure the high hardness and toughness of the tool sleeve. 4STANDARD SIZE: The drill bushing adapter has standard inner and outer diameter of the cylinder wall, which is easy to connect and not easy to fall off. 5APPLICABLE TOOL: Suitable for MTA1, MTA2, MTA3 Morse tool holes, the auxiliary tool holder has a wide installation range and has strong practicality.