Toolex Reamer with a straight shank and spiral flute is a precision tool designed for machinists who need accurate hole enlargement and high-quality finishes. Built from HSS-E for durability and heat resistance, the 4.31 mm reamer delivers consistent diameters and smooth bore surfaces across a range of materials.

• Diameter: 4.31 mm
• Material: HSS-E (high-speed steel with cobalt) for enhanced wear resistance and heat tolerance
• Flute Design: Spiral flute for efficient chip evacuation and stable cutting action
• Shank Type: Straight shank compatible with a wide range of tool holders and setups
• Precision Performance: Delivers accurate hole sizing with smooth finishes and tight tolerances
• Applications: Ideal for precision hole enlargement and finishing in steel, aluminum, stainless steel, cast iron, and other common metals

The spiral flute improves chip flow, reducing chip packing and heat buildup, which translates into cleaner holes and longer tool life. The straight shank enables quick changes in multiple machines and holders, giving you flexibility in CNC mills, drill presses, and dedicated reaming stations. Use Toolex Reamer to enlarge pre-drilled holes or to achieve a precise final diameter with tight tolerances, ensuring parts fit smoothly in assemblies and machinery. For best results, match cutting parameters to material and use proper lubrication to minimize wear and maximize surface finish.