Magafor Reamer - Spiral Flute - Straight Shank - HSS-E - 5.21mm

The Magafor Reamer is an intermediate precision HSS-E straight shank finishing tool designed to bring drilled holes to a precise final size with a smooth bore. Built from HSS-E (M35 cobalt) and finished with a straight shank, it offers reliable performance across common metals and through-holes, making it a dependable choice for engineers, machinists, and workshop hobbyists alike.

Its left-hand spiral flute works with right-hand cutting to optimize chip evacuation and cutting action, helping you achieve consistent bore finishes in fewer passes. DIN 212-B tolerance D = 0 + 0.004 mm specifies the allowable variation, giving you confidence in tight, repeatable results. The straight shank design also ensures quick, secure mounting in standard chucks and collets for efficient setup during busy production or maintenance tasks.

• Durable HSS‑E cobalt steel (M35): Keeps a sharp cutting edge longer and withstands heat during finishing passes, delivering consistent hole size and reducing tool changes.
• Left-hand spiral flute with right-hand cutting: Enables efficient chip evacuation and stable cutting action, improving surface finish and reducing dwell time in both blind and through-holes.
• DIN 212-B tolerance D = 0 + 0.004 mm: Provides a tight, predictable final hole size, supporting precise fits and reliable assemblies in precision work.

This reamer helps you achieve precise bore finishes quickly, lowers rework, and keeps your workflow efficient. The combination of durable material, optimized chip flow, and tight tolerances translates into reliable, repeatable results across projects—whether you’re delivering production quality parts or performing maintenance tasks with professional-grade finishes.