Brazed Carbide Machine Reamers - Model 900 - H7 Tolerance - For Automatic Machines

The machine reamer H7 with a cylindrical h8 shank, ultra-fine K10 micrograin, left-hand helical flutes at a 5° angle, and brazed carbide tips is a precision tool designed for high-quality finishing operations. It is particularly used in mechanical applications to achieve holes with tight tolerances and smooth surfaces. The H7 tolerance indicates that the reamer is designed to produce holes with very tight tolerances, typically used in precision applications. The H7 class is common in sectors such as automotive, aerospace, and the production of high-precision mechanical components.

The h8 shank tolerance ensures precise and stable mounting in machine tool holders. This reduces vibrations during machining, improving the precision and quality of the hole. The carbide (tungsten carbide) with ultra-fine micrograin offers high hardness, wear resistance, and an excellent surface finish. The K10 grade is particularly suitable for high-speed machining and difficult materials. The left-hand helix promotes efficient chip evacuation, reducing the risk of clogging and improving the quality of the machined surface. The 5° helix angle is optimal for balancing cutting edge strength and cutting performance.

The carbide tips are brazed to the tool body, a technique that ensures a strong and durable connection, ideal for heavy or prolonged machining operations. It is suitable for machining steels, cast iron, non-ferrous alloys, and other difficult materials. It is used in automotive, aerospace, mold production, and precision mechanical components. It is compatible with both CNC and conventional machines. Thanks to the H7 tolerance and h8 shank, it guarantees holes with very accurate dimensions. The K10 carbide and ultra-fine micrograin ensure a long tool life. The left-hand helix and tool geometry reduce surface imperfections. The h8 cylindrical shank minimizes vibrations, improving machining quality.

To maintain optimal performance, it is advisable to use appropriate cooling fluids and periodically check for tool wear. Regular cleaning of the tool and proper management of machining parameters (cutting speed, feed rate, etc.) help extend its lifespan.