Magafor Reamer - Spiral Flute - Straight Shank - HSS-E - 0.63mm is an intermediate-precision tool designed to finish drilled holes to a precise diameter. Made from HSS-E (M35 cobalt content), it delivers durable cutting edges and reliable wear resistance for repeated use. The straight shank fits most common chucks and collets, while the left-hand spiral flute with right-hand cutting provides controlled material removal and a clean finish. DIN 212-B tolerance is D = 0 + 0.003 mm, helping you achieve consistent hole sizes across parts. Tight DIN 212-B tolerance (D = 0 + 0.003 mm): Ensures final hole diameter stays within +0.003 mm of nominal, reducing rework and improving part-to-part consistency. HSS-E with M35 cobalt for long tool life: High-hardness cobalt alloy provides enduring cutting edges and wear resistance across a range of materials. Left-hand spiral flute with right-hand cutting for efficient chip removal: Optimized flute geometry helps chips escape quickly, lowering clogging and delivering a smoother finish. This reamer helps you achieve repeatable, precise holes with fewer reworks and faster setup. The 0.63 mm diameter is ideal for small features in aluminum and steel, and the durable HSS-E construction maintains sharpness over many cycles. Its straight shank fits standard tooling interfaces, while efficient chip evacuation supports a smoother workflow, longer tool life, and reliable results in production and workshop environments.