The Dormer B411 DIN 8094 H7 Form B machine reamer is a high-precision tool specifically designed for machining holes with H7 tolerance. With a diameter of 20 mm and an overall length of 228 mm, this reamer features a cutting length of 60 mm and an effective working length of 148 mm. Its construction includes a strongly unevenly divided, light left-hand spiral that allows for efficient chip removal and improved surface quality. The uncoated solid carbide head is suitable for machining various materials, including carbon steel, steel alloys, tool steel, cast iron, as well as aluminum and copper alloys. This machine reamer is an essential tool for professionals seeking precise and high-quality results in metalworking.

• Strongly unevenly divided, light left-hand spiral for improved chip removal
• Solid carbide head for versatile material machining
• Neck relief for ease of use in tight spaces
• Designed according to DIN 8094 standard for precise H7 tolerances.