Harvey Tool General
Harvey general guideline, carbide end mill (0.125")
Type: flat end mill · Diameter: 0.125" · Flutes: see maker catalog
Starting points only, copied from the makers' own published data. Every machine differs: test in scrap, tune by ear. Neither ChipLoad nor the makers are responsible for broken tools.
Published values, summarized per material and machine class. For the full CAM library (plunge, depth, stepover), download it from the maker.
| Material | Machine class | RPM | Feed IPM | Chip load (in) | Note | Source |
|---|---|---|---|---|---|---|
| Polycarbonate (Lexan) | any | – | – | 0.001 | Harvey general machining guideline for carbide end mills (any flute count). SFM 200-500. Spot-checked 2026-10-16: Conservative, metal-style figure; Onsrud's polycarbonate guide gives 0.004–0.012" for routing. ⚠ Outlier (for review): ours 0.001" vs median 0.005" of 1 other maker(s): Onsrud (-80%) | Harvey Tool |
| Polycarbonate (Lexan) | any | – | – | 0.002 | Harvey general machining guideline for carbide end mills (any flute count). SFM 200-500. Spot-checked 2026-10-16: Conservative, metal-style figure; Onsrud's polycarbonate guide gives 0.004–0.012" for routing. | Harvey Tool |
| Polycarbonate (Lexan) | any | – | – | 0.003 | Harvey general machining guideline for carbide end mills (any flute count). SFM 200-500. Spot-checked 2026-10-16: Conservative, metal-style figure; Onsrud's polycarbonate guide gives 0.004–0.012" for routing. ⚠ Outlier (for review): ours 0.003" vs median 0.0095" of 1 other maker(s): Onsrud (-68%) | Harvey Tool |
| Polycarbonate (Lexan) | any | – | – | 0.004 | Harvey general machining guideline for carbide end mills (any flute count). SFM 200-500. Spot-checked 2026-10-16: Conservative, metal-style figure; Onsrud's polycarbonate guide gives 0.004–0.012" for routing. ✓ Cross-checked | Harvey Tool |
| Polycarbonate (Lexan) | any | – | – | 0.006 | Harvey general machining guideline for carbide end mills (any flute count). SFM 200-500. Spot-checked 2026-10-16: Conservative, metal-style figure; Onsrud's polycarbonate guide gives 0.004–0.012" for routing. ✓ Cross-checked | Harvey Tool |
| Polycarbonate (Lexan) | any | – | – | 0.008 | Harvey general machining guideline for carbide end mills (any flute count). SFM 200-500. Spot-checked 2026-10-16: Conservative, metal-style figure; Onsrud's polycarbonate guide gives 0.004–0.012" for routing. | Harvey Tool |
| Polycarbonate (Lexan) | any | – | – | 0.01 | Harvey general machining guideline for carbide end mills (any flute count). SFM 200-500. Spot-checked 2026-10-16: Conservative, metal-style figure; Onsrud's polycarbonate guide gives 0.004–0.012" for routing. | Harvey Tool |
| Polycarbonate (Lexan) | any | – | – | 0.015 | Harvey general machining guideline for carbide end mills (any flute count). SFM 200-500. Spot-checked 2026-10-16: Conservative, metal-style figure; Onsrud's polycarbonate guide gives 0.004–0.012" for routing. | Harvey Tool |
Retrieved 2026-10-16. Get the tool file from the maker: Harvey Tool downloads
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