The machine reamer B170 DIN 212 Form B with a nominal diameter of 2.5 mm is a precise tool designed for metalworking. Made from HSS-E (high-speed steel), this reamer offers high wear resistance and durability. It is ideal for applications requiring tight tolerances and allows for the creation of fits in tolerance classes 2.5JS8 or 2.5JS9. The reamer features a slight left-hand spiral and a cylindrical shank, making it easier to handle and insert into machines. With a working length of 28 mm and an overall length of 57 mm, it is versatile and suitable for various materials, including carbon steel, steel alloys, cast iron, aluminum, and copper alloys. The uncoated HSSE-Co surface ensures effective machining and high surface quality.

• Slight left-hand spiral for improved chip removal
• Neck relief to prevent binding
• Diameter tolerance of 0/+0.004 mm for precise fits
• Suitable for a variety of materials, including aluminum and copper
• Designed according to DIN 212 standard for high quality and reliability.