The machine reamer B170 DIN 212 Form B is a precise tool specifically designed for metalworking. With a nominal diameter of 5.05 mm and an overall length of 86 mm, it offers an optimal solution for applications requiring high accuracy. The reamer is made of HSS-E (high-speed steel) and is uncoated, making it ideal for machining carbon steel, steel alloys, as well as various aluminum and copper alloys. The slight left-hand spiral and cylindrical shank enhance chip removal and ensure uniform machining. The reamer meets the requirements of the DIN 212 standard and provides a diameter tolerance of 0/+0.004 mm, making it particularly suitable for producing fits within the tolerances of 5D9 or 5H11. With a cutting length of 23 mm and a working length of 52 mm, it is versatile and enables precise results in metalworking.

• Slight left-hand spiral for improved chip removal
• Neck relief grind for easier machining
• Suitable for machining cast iron and aluminum
• Meets the DIN 212 standard for high precision
• Optimal diameter tolerance of 0/+0.004 mm.