Toolex Reamers with straight shank and spiral flute are precision tools for enlarging and finishing holes with consistent, smooth results. The 0.67 mm diameter version is crafted from HSS-E (high-speed steel with cobalt), delivering durability and heat resistance for demanding work. The spiral flute design ensures efficient chip evacuation and improved cutting performance, while the straight shank offers compatibility with a wide range of tool holders and setups. 0.67 mm precision diameter: precisely sized to achieve tight tolerances on hole enlargement with repeatable results across compatible materials. Straight shank for versatile mounting: fits a wide range of tool holders and machining setups, enabling quick changes and flexible configurations. Spiral flute on HSS-E construction: enhances chip evacuation and heat resistance, delivering smooth cutting and longer tool life. Using Toolex Reamers helps you achieve consistent hole sizes, minimize finishing passes, and keep your workflow moving—fewer tool changes, less rework, and reliable performance across materials.