The Dormer B442 DIN 8051 H7 Form A machine reamer is a high-precision tool specifically designed for machining holes with H7 tolerance. With a nominal diameter of 15 mm and an overall length of 204 mm, this reamer provides an effective solution for various materials, including steel alloys, tool steel, aluminum, and copper. The unevenly spaced, straight-fluted cutting edge ensures uniform chip removal and improved surface quality. The reamer is made from high-quality solid carbide (VHM) and features a neck relief that facilitates machining in deep holes. These characteristics make the B442 an indispensable tool for professionals seeking precise and efficient results in metalworking.

• Manufactured according to DIN 8051 standard for precise H7 tolerances
• Uncoated solid carbide for versatile machining options
• Neck relief for improved accessibility in deep holes
• Suitable for a variety of materials, including steel and aluminum
• Extremely uneven spacing to reduce vibrations and improve surface quality.