Garr 48445 3/8x3in 4FL .030"R AlTiN Carbide Corner Radius End Mill
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The Garr Tool 48445 is a new, solid micrograin carbide corner radius end mill from Garr's H-45 series, featuring a 3/8 in cutting diameter, 3 in overall length, 4 flutes, and a .030 in corner radius. The tool is finished with an AlTiN (Aluminum Titanium Nitride) coating, which provides excellent thermal stability and oxidation resistance at elevated temperatures, making it well-suited for dry or semi-dry machining of hardened steels, alloy steels, stainless steels, and cast iron. The H-45 designation indicates a helix angle of 45°, which reduces cutting forces and improves surface finish while enhancing chip evacuation in deep-slot and peripheral milling operations. The 3/8 in shank is compatible with standard ER collet chucks, shrink-fit holders, and side-lock holders. Manufactured in Alma, Michigan, USA to tight tolerances for consistent performance in CNC machining centers.
Product Specifications
| Brand | Garr Tool |
| Part Number (MPN) | 48445 |
| Series | H-45 |
| Cutting Diameter | 3/8 in (0.375 in) |
| Overall Length | 3 in |
| Corner Radius | .030 in |
| Number of Flutes | 4 |
| Shank Diameter | 3/8 in |
| Helix Angle | 45° |
| Coating | AlTiN (Aluminum Titanium Nitride) |
| Substrate | Solid Micrograin Carbide |
| End Type | Corner Radius |
| Flute Length | 3/8 in F/L (per label) |
| Country of Origin | USA (Alma, MI) |
| Condition | New |