Accupro 48339493 1/2x1/2x5/8x4 3FL Necked ZRN Ball End Mill
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The Accupro 48339493 is a new, solid carbide, 3-flute ball-nose end mill optimized for aluminum and non-ferrous machining, featuring a ZrN (Zirconium Nitride) coating — the bright gold finish visible in the photos — applied over the fluted portion with an uncoated shank for reliable chuck grip. Label-confirmed dimensions read 1/2 × 1/2 × 5/8 × 4: 1/2 in (0.500 in) cutting diameter, 1/2 in shank diameter, 5/8 in length of cut, and 4 in overall length; the tool is necked down behind the cutting head to a sub-shank diameter of approximately 5/8 in, enabling deep-pocket reach with reduced wall interference. The .030 in corner radius (bull-nose radius on the ball end) and the 3-flute geometry promote smooth chip evacuation in high-speed aluminum passes, and the "SEEM" designation indicates a semi-finishing/finishing end mill profile suited for contour milling, 3D surfacing, and deep-pocket aluminum work on CNC machining centers using a standard 1/2 in ER or end-mill holder.
Product Specifications
| Brand | Accupro |
| MPN | 48339493 |
| Cutting Diameter | 1/2 in (0.500 in) |
| Shank Diameter | 1/2 in (0.500 in) |
| Length of Cut | 5/8 in (0.625 in) |
| Overall Length | 4 in |
| Number of Flutes | 3 |
| End Style | Ball Nose |
| Corner Radius | 0.030 in |
| Coating | ZrN (Zirconium Nitride) |
| Neck Style | Necked (reduced neck behind cutting dia.) |
| Application | Aluminum & Non-Ferrous |
| Series / Style | SEEM (Semi/Finishing) |
| Substrate | Solid Carbide |
| Shank Style | Straight / Cylindrical |
| Condition | New |