Magafor Reamer - Spiral Flute - Straight Shank - HSS-E - 4.30mm

Magafor Reamer - Spiral Flute - Straight Shank - HSS-E - 4.30mm is an intermediate precision reamer designed to finish holes to tight, repeatable diameters. It’s ideal for machinists, engineers, toolmakers, and workshops that need reliable bore finishing with a clean, accurate surface. Sized at 4.30 mm, it delivers consistent results in a range of ferrous and alloy materials when paired with compatible tooling.

Designed with a left-hand spiral flute and right-hand cutting, this reamer uses HSS-E (M35 cobalt) for enhanced heat resistance and wear life. The straight shank ensures solid alignment in standard chucks and collets, while the DIN 212-B tolerance of D = 0 + 0.004 mm guarantees precise hole sizing and minimal rework.

• Tight DIN 212-B tolerance for repeatable bore sizes: Achieves D = 0 to +0.004 mm, helping you hit exact hole sizes every time and reduce rework.
• HSS-E cobalt alloy for durability: M35 Cob composition provides superior hot hardness and wear resistance, extending tool life in demanding materials.
• Left-hand spiral flute with straight shank for stable, efficient cutting: The flute geometry improves chip evacuation and surface finish while the straight shank keeps alignment precise in common machining setups.

This reamer is engineered to streamline finishing operations, delivering consistent results across production runs, reducing downtime, and helping you achieve high-quality holes with minimal setup adjustments.