The Dormer B400 DIN 8093 H7 Form B machine reamer is a high-precision tool specifically designed for machining holes with H7 tolerance. With a nominal diameter of 12 mm and an overall length of 151 mm, this reamer provides an effective solution for various materials, including carbon steel, steel alloys, tool steel, cast iron, and aluminum. The unevenly divided, light left-hand spiral design ensures improved chip removal and a uniform surface finish. The cutting length is 44 mm, while the working depth is 111 mm, allowing for high flexibility in application. The neck relief grind supports machining in tight spaces and ensures optimal performance.

• High-precision machining according to DIN 8093 standard
• Suitable for a variety of materials, including steel and aluminum
• Light left-hand spiral for improved chip removal
• Neck relief grind for applications in tight spaces
• Uncoated carbide for versatile machining options.