The Dormer B101 BS 328 H7 Form B machine reamer is a high-precision tool specifically designed for machining holes with H7 tolerance. With a nominal diameter of 30 mm and an overall length of 251 mm, this reamer features a cutting length of 124 mm, ensuring efficient material processing. The light left-hand spiral and MK shank allow for easy handling and precise results. Made from HSS-E (high-speed steel), the surface of the reamer is bright steam-hardened, enhancing its durability and resistance to wear. This reamer is ideal for machining various materials, including carbon steel, steel alloys, cast iron, as well as aluminum and copper alloys. Compliance with the BS 328 standard ensures high quality and reliability in application.

• Light left-hand spiral for improved cutting performance
• Made from HSS-E with a bright steam-hardened surface
• Suitable for precise machining of H7 tolerances
• Versatile for various types of metals and alloys.