NACHI LRE Roughing End Mill (4/5/6F)
4/5/6-flute HSS-Co square end mill for machining steel, stainless steel and non-ferrous metals, for high-efficiency roughing. Ø12–50 mm in whole-millimetre sizes (16 catalogue items). Ships in a single coating option. Part of NACHI's milling tool range.
Engineered for performance
HSS-Co Substrate, Uncoated
A cobalt-alloyed high-speed-steel body with no coating, across all 16 catalogue sizes.
4/5/6-Flute Roughing Geometry
A 3-way flute-count choice (4F/5F/6F) under the catalogue's own "Roughing" designation, for high material-removal-rate cuts.
Steel, Stainless & Non-Ferrous Coverage
Rated for ISO P (steel), M (stainless steel) and N (non-ferrous metal) material groups.
Ø12–50 mm, 105–250 mm Overall Length
Diameters run Ø12–50 mm in whole-millimetre steps, with overall lengths from 105 to 250 mm across 16 sizes.
High-Efficiency Roughing
The catalogue's own "Roughing" line name signals this end mill is purpose-built for bulk stock removal, not finishing passes, and is the largest-diameter-minimum end mill (Ø12 mm floor) in this phase's NACHI drafting.
Sizes & part numbers
No sizes match those filters.
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| ORDER NO. | FLUTES | Ø | FLUTE L | OAL | SHANK | COATING |
|---|---|---|---|---|---|---|
| LRE12 | 4 | 12 mm | 55 | 105 | 12 | HSSCO |
| LRE14 | 4 | 14 mm | 55 | 110 | 16 | HSSCO |
| LRE15 | 4 | 15 mm | 65 | 120 | 16 | HSSCO |
| LRE16 | 4 | 16 mm | 65 | 120 | 16 | HSSCO |
| LRE18 | 4 | 18 mm | 65 | 130 | 20 | HSSCO |
| LRE20 | 4 | 20 mm | 75 | 140 | 20 | HSSCO |
| LRE22 | 4 | 22 mm | 75 | 140 | 20 | HSSCO |
| LRE24 | 4 | 24 mm | 90 | 160 | 25 | HSSCO |
| LRE25 | 4 | 25 mm | 90 | 160 | 25 | HSSCO |
| LRE28 | 5 | 28 mm | 90 | 160 | 25 | HSSCO |
| LRE30 | 5 | 30 mm | 105 | 190 | 32 | HSSCO |
| LRE32 | 5 | 32 mm | 105 | 190 | 32 | HSSCO |
| LRE35 | 5 | 35 mm | 115 | 200 | 32 | HSSCO |
| LRE40 | 5 | 40 mm | 125 | 210 | 42 | HSSCO |
| LRE45 | 6 | 45 mm | 130 | 230 | 42 | HSSCO |
| LRE50 | 6 | 50 mm | 140 | 250 | 42 | HSSCO |
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