Dormer NC reamer B180 DIN 212 H7 B nominal Ø 20 mm HSS-E blank helical fluted

The NC reamer B180 DIN 212 H7 B with a nominal diameter of 20 mm is a high-precision tool specifically designed for machining holes with H7 tolerance. It is made of high-quality HSS-E (high-speed steel) and features an uncoated surface suitable for processing various materials such as carbon steel, steel alloys, cast iron, aluminum, and copper. The reamer has a slight left-hand spiral and a cylindrical shank, which enhances handling and machining accuracy. With an overall length of 195 mm and a cutting length of 60 mm, it is ideal for applications requiring precise and clean machining. The neck relief design ensures that the reamer can be effectively used in deep holes.

• Slight left-hand spiral for improved machining accuracy
• High-quality HSS-E material for durability and efficiency
• Suitable for a variety of materials, including steel and aluminum
• Neck relief design allows effective use in deep holes
• Complies with DIN 212 standard for precise holes with H7 tolerance.