Brazed Square End Mills (4F)
4-flute brazed-carbide square end mill for machining steel and cast iron. Uncoated, Ø20–50 mm in whole-millimetre sizes (25 catalogue items). Ships in a single coating option. Rated for ISO P/K material classes. Part of Okazaki's milling tool range. Cataloged under the BPD order-code prefix.
Engineered for performance
Brazed-Carbide Substrate, Uncoated
Uncoated — no coating option offered in this line — across all 25 catalogue sizes, catalogued under the BPD order-code prefix. A carbide tip brazed onto a steel body, not a one-piece carbide tool.
4-Flute Square-End Geometry
A fixed 4-flute square-end profile — the 4-flute counterpart to the 2-Flute Brazed Square Endmills line drafted in this same batch.
Steel & Cast-Iron Coverage
Rated for ISO P (steel) and K (cast iron) material groups.
Ø20–50 mm, 115–265 mm Overall Length
Diameters run Ø20–50 mm in whole-millimetre steps, with overall lengths from 115 to 265 mm across 25 sizes.
Sizes & part numbers
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BPD4L 🔍 Click to zoom 
BPD4U 🔍 Click to zoom No sizes match those filters.
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| ORDER NO. | FLUTES | Ø | FLUTE L | OAL | SHANK | COATING |
|---|---|---|---|---|---|---|
| BPD4F200 | 4 | 20 mm | 32 | 115 | 20 | Uncoated |
| BPD4L200F | 4 | 20 mm | 55 | 140 | 20 | Uncoated |
| BPD4U200F | 4 | 20 mm | 85 | 185 | 25 | Uncoated |
| BPD4F220 | 4 | 22 mm | 32 | 115 | 20 | Uncoated |
| BPD4F250 | 4 | 25 mm | 40 | 140 | 25 | Uncoated |
| BPD4L250F | 4 | 25 mm | 70 | 170 | 25 | Uncoated |
| BPD4U250F | 4 | 25 mm | 100 | 215 | 32 | Uncoated |
| BPD4F280 | 4 | 28 mm | 40 | 140 | 25 | Uncoated |
| BPD4F300 | 4 | 30 mm | 50 | 150 | 32 | Uncoated |
| BPD4L300F | 4 | 30 mm | 85 | 200 | 32 | Uncoated |
| BPD4U300F | 4 | 30 mm | 115 | 230 | 32 | Uncoated |
| BPD4F320 | 4 | 32 mm | 50 | 150 | 32 | Uncoated |
| BPD4L320F | 4 | 32 mm | 85 | 200 | 32 | Uncoated |
| BPD4F350 | 4 | 35 mm | 50 | 150 | 32 | Uncoated |
| BPD4L350F | 4 | 35 mm | 85 | 200 | 32 | Uncoated |
| BPD4U350F | 4 | 35 mm | 115 | 230 | 32 | Uncoated |
| BPD4F400 | 4 | 40 mm | 50 | 150 | 32 | Uncoated |
| BPD4L400F | 4 | 40 mm | 100 | 215 | 32 | Uncoated |
| BPD4U400F | 4 | 40 mm | 125 | 240 | 32 | Uncoated |
| BPD4F450 | 4 | 45 mm | 63 | 160 | 42 | Uncoated |
| BPD4L450F | 4 | 45 mm | 100 | 215 | 42 | Uncoated |
| BPD4U450F | 4 | 45 mm | 125 | 240 | 42 | Uncoated |
| BPD4F500 | 4 | 50 mm | 63 | 160 | 42 | Uncoated |
| BPD4L500F | 4 | 50 mm | 125 | 240 | 42 | Uncoated |
| BPD4U500F | 4 | 50 mm | 150 | 265 | 42 | Uncoated |
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