SP Square End Mills (2/4F)
2/4-flute solid-carbide square end mill for machining steel and stainless steel. OK Premium coated, Ø1–25 mm (33 catalogue items). Ships in a single coating option. Rated for ISO P/M material classes. Part of Okazaki's milling tool range. Cataloged under the SPSED order-code prefix.
Engineered for performance
Solid-Carbide Substrate, OK Premium Coating
OK Premium coating is standard — no uncoated option — across all 33 catalogue sizes, catalogued under the SPSED order-code prefix.
2/4-Flute Choice
A 2-way flute-count choice (2F/4F) at each diameter.
Steel & Stainless Coverage
Rated for ISO P (steel) and M (stainless steel) material groups.
Ø1–25 mm, 45–120 mm Overall Length
Diameters run Ø1–25 mm, with overall lengths from 45 to 120 mm across 33 sizes.
Sizes & part numbers
SPSED2A 🔍 Click to zoom 
SPSED4A 🔍 Click to zoom No sizes match those filters.
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| ORDER NO. | FLUTES | Ø | FLUTE L | OAL | SHANK | COATING |
|---|---|---|---|---|---|---|
| SPSED2A010 | 2 | 1 mm | 2.5 | 45 | 4 | OK Premium |
| SPSED2A015 | 2 | 1.5 mm | 4 | 45 | 4 | OK Premium |
| SPSED2A020 | 2 | 2 mm | 6 | 45 | 4 | OK Premium |
| SPSED4A020 | 4 | 2 mm | 6 | 45 | 4 | OK Premium |
| SPSED2A025 | 2 | 2.5 mm | 8 | 45 | 4 | OK Premium |
| SPSED2A030 | 2 | 3 mm | 10 | 45 | 6 | OK Premium |
| SPSED4A030 | 4 | 3 mm | 10 | 45 | 6 | OK Premium |
| SPSED2A040 | 2 | 4 mm | 12 | 45 | 6 | OK Premium |
| SPSED4A040 | 4 | 4 mm | 12 | 45 | 6 | OK Premium |
| SPSED2A050 | 2 | 5 mm | 15 | 50 | 6 | OK Premium |
| SPSED4A050 | 4 | 5 mm | 15 | 50 | 6 | OK Premium |
| SPSED2A060 | 2 | 6 mm | 15 | 50 | 6 | OK Premium |
| SPSED4A060 | 4 | 6 mm | 15 | 50 | 6 | OK Premium |
| SPSED2A080 | 2 | 8 mm | 18 | 60 | 8 | OK Premium |
| SPSED4A080 | 4 | 8 mm | 18 | 60 | 8 | OK Premium |
| SPSED2A100 | 2 | 10 mm | 22 | 70 | 10 | OK Premium |
| SPSED4A100 | 4 | 10 mm | 22 | 70 | 10 | OK Premium |
| SPSED2A120 | 2 | 12 mm | 25 | 75 | 12 | OK Premium |
| SPSED4A120 | 4 | 12 mm | 25 | 75 | 12 | OK Premium |
| SPSED2A140 | 2 | 14 mm | 32 | 90 | 16 | OK Premium |
| SPSED4A140 | 4 | 14 mm | 32 | 90 | 16 | OK Premium |
| SPSED2A150 | 2 | 15 mm | 32 | 90 | 16 | OK Premium |
| SPSED4A150 | 4 | 15 mm | 32 | 90 | 16 | OK Premium |
| SPSED2A160 | 2 | 16 mm | 32 | 90 | 16 | OK Premium |
| SPSED4A160 | 4 | 16 mm | 32 | 90 | 16 | OK Premium |
| SPSED2A180 | 2 | 18 mm | 40 | 105 | 20 | OK Premium |
| SPSED4A180 | 4 | 18 mm | 40 | 105 | 20 | OK Premium |
| SPSED2A200 | 2 | 20 mm | 40 | 105 | 20 | OK Premium |
| SPSED4A200 | 4 | 20 mm | 40 | 105 | 20 | OK Premium |
| SPSED2A220 | 2 | 22 mm | 40 | 120 | 20 | OK Premium |
| SPSED4A220 | 4 | 22 mm | 40 | 120 | 20 | OK Premium |
| SPSED2A250 | 2 | 25 mm | 45 | 120 | 25 | OK Premium |
| SPSED4A250 | 4 | 25 mm | 45 | 120 | 25 | OK Premium |
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