Putnam 94624 High Speed Steel 4 Flute End Mill

Putnam 94624 High Speed Steel 4-Flute End Mill has a 3/8 inch diameter and a 3/8 inch shank, with four cutting flutes designed for efficient material removal. This end mill is made from high-speed steel, a material known for hardness, toughness, and heat resistance that suits metal-cutting applications. The four-flute geometry supports higher feed rates and smoother finishes, particularly in light-to-moderate milling tasks. Model 94624 is a Putnam product, tailored to 3/8 inch shank tooling and compatible with standard end-mill setups. Four-flute designs typically offer efficient chip evacuation and stable cutting action compared with cutters with fewer flutes. In practical use, this tool serves general-purpose milling in metalworking projects where precision and rigidity are valued.