Size - ER20-A(M25); Thread Diameter: 25 mm / 0.98"; Thread Pitch: 1.5 mm / 0.06"; Nut Outer Diameter: 34 mm / 1.34"; Thick: 21 mm / 0.83"; Hex Width: 30mm / 1.18". Material - Made of 40Cr alloy steel with a hardness range of HRC48-50, offering high strength and toughness. After heat treatment, it ensures durability and reliability under demanding conditions. Feature - Serving as a good replacement part, this collet nut provides superior performance and compatibility. Suitable for most tool holders, hex nuts can be used with ER-style tool holders, extension bar nut holding drill bit, tool holders, boring tools, and other tools. Application - Suitable for collets in CNC lathes, milling machines, and other machine tools, it securely holds cutting tools, ensuring precision and stability during machining. Widely used in mechanical processing, metalworking, automotive manufacturing, and other industries. Note - Do not over-tighten the nut, as this will damage the collet; Check the clamping nut for wear and looseness regularly, and replace damaged parts in time to ensure safe performance. 1. Constructed from 40Cr alloy steel with a hardness range of HRC48-50, this collet nut offers high strength and toughness. Heat treatment ensures its durability and reliability in demanding conditions.
2. Serving as a good replacement part, this collet nut provides superior performance and compatibility. Suitable for most tool holders, hex nuts can be used with ER-style tool holders, extension bar nut holding drill bit, tool holders, boring tools, and other tools.
3. Suitable for use with collets in CNC lathes, milling machines, and other machine tools, this collet nut securely holds cutting tools, ensuring precision and stability during machining. It is widely used in mechanical processing, metalworking, automotive manufacturing, and other industries.
4. Do not over-tighten the nut, as this will damage the collet; Check the clamping nut for wear and looseness regularly, and replace damaged parts in time to ensure safe performance.