Iscar ECHI-B6 375-875-C375 IC900 5620999 6-Flute 3/8in Carbide End Mill
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The Iscar ECHI-B6 375-875-C375 (catalog # 6974741 / item # 1208605) is a new, solid carbide 6-flute square-end end mill from Iscar's EChi line, manufactured in Israel and designed for high-feed, high-efficiency milling of hardened and difficult-to-machine steels. The full part number decodes as: cutting diameter D = 0.375 in (3/8 in), shank diameter d = 0.375 in (3/8 in), axial depth of cut ap = 0.875 in, length class L3 (stub/regular overhang), 6 flutes (Z6), 45° helix angle (Ha45), center-cutting geometry (C), in IC900 grade. IC900 is Iscar's PVD TiAlN-based nano-layer coating on a fine-grain carbide substrate, rated for machining hardened steels up to ~65 HRC, stainless steels, and high-temperature alloys at elevated surface speeds. The 6-flute configuration with 45° helix delivers high metal removal rates and superior surface finish in finishing and semi-finishing passes; the 3/8 in shank is compatible with standard ER collet chucks, milling chuck toolholders, and shrink-fit holders of the same bore diameter.
Product Specifications
| Brand | Iscar |
| Series | EChi-B6 |
| Iscar Part Number (MPN) | ECHI-B6 375-875-C375 |
| Catalog Number | 6974741 |
| Item Number | 1208605 |
| Grade | IC900 |
| Coating | PVD TiAlN nano-layer (IC900) |
| Substrate | Fine-grain solid carbide |
| Cutting Diameter | 0.375 in (3/8 in) |
| Shank Diameter | 0.375 in (3/8 in) |
| Max Axial Depth of Cut (ap) | 0.875 in |
| Number of Flutes | 6 |
| Helix Angle | 45° |
| End Type | Square (flat) end, center-cutting |
| Length Class | L3 (regular/stub reach) |
| Shank Type | Cylindrical (plain round) |
| Country of Origin | Israel |
| Condition | New |