Toolex's Straight Shank Spiral Flute Reamer in HSS-E is designed for precise hole enlargement and finishing, delivering dependable accuracy for both CNC and manual machining environments. Diameter: 11.56 mm Material: HSS-E (high-speed steel with cobalt) for enhanced hardness and heat resistance Flute design: Spiral flutes for efficient chip evacuation and smoother cutting Shank: Straight shank for broad compatibility with common tool holders and collets Precision: Consistent bore quality with tight tolerances Applications: Suitable for precision reaming across a wide range of metals and alloys With the Toolex Reamer, enlarge existing holes to a precise 11.56 mm diameter while achieving a superior surface finish. The cobalt-infused HSS composition resists wear and heat, extending tool life in demanding materials. The straight shank and spiral flute work together to reduce chatter, enhance chip clearance, and minimize rework, making it a reliable choice for finishing operations in automotive, aerospace, and general manufacturing. Use for finishing internal bores, deburring edges, or preparing holes for assembly with inserts—consistently accurate results you can trust.