The Dormer B170 DIN 212 Form B machine reamer is a precise tool designed for machining metal and other materials. With a nominal diameter of 5.04 mm and an overall length of 86 mm, this reamer features a cutting length of 23 mm and an effective working length of 52 mm. The slight left-hand spiral and cylindrical shank enable efficient machining and high accuracy in the production of fits. The reamer meets DIN 212 standards and offers a diameter tolerance of 0/+0.004 mm, making it ideal for applications in the mechanical engineering industry. It is made of HSS-E (high-speed steel) and is suitable for machining various materials, including carbon steel, steel alloys, cast iron, aluminum, and copper alloys. This reamer is uncoated and provides high performance when machining free forms.

• Slight left-hand spiral for improved machining efficiency
• Neck relief to facilitate chip removal
• Meets DIN 212 standards for high precision
• Diameter tolerance of 0/+0.004 mm for exact fits
• Suitable for a variety of materials, including aluminum and copper alloys.