Magafor Reamer - Spiral Flute - Straight Shank - HSS-E - 4.87mm

Magafor's Spiral Flute Reamer with a straight shank is an intermediate-precision finishing tool designed to bring drilled holes to a precise, smooth final size. Made from HSS-E (M35 cobalt), this 4.87 mm reamer combines robust wear resistance with reliable cutting performance to produce accurate holes in a range of steel and alloy workpieces.

With its left-hand spiral flute and right-hand cutting geometry, the reamer provides stable, controlled material removal and efficient chip evacuation—ideal for shop floor use by machinists, toolmakers, engineers, and hobbyists who demand consistent results.

• DIN 212-B tolerance with a tight size: Finishes holes to D = 0 + 0.004 mm, helping you hit exact specifications and reduce downstream fitting work.
• HSS-E (M35 cobalt) for long life: Enhanced hardness and wear resistance ensure durable performance across multiple finishes and tougher materials.
• Left-hand spiral flute with straight shank and right-hand cutting: Optimized chip removal and dependable grip in standard holders, delivering stable cuts and clean hole finishes.

This reamer is built to integrate smoothly into standard machining workflows, delivering repeatable hole sizes, improved surface quality, and less rework. Its sturdy construction and precise tolerance help you reduce downtime, increase productivity, and achieve dependable, professional results across batches and materials.