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| Reamer Types by material |
| 1)Hi-Speed Steel (HSS) Reamer |
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Pros |
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Cons |
- Short-lasting
- Prone to rust
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2)Carbide Reamer |
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Pros |
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Cons |
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| Reamer Parts |
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Back Taper |
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Most of reamers are tapered from the tip of
chamfer to the end of flute region. |
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| Spiral Flute |
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Pros |
- Better surface roughness than straight flute
- Reduced enlargement of finished hole than straight flute
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Cons |
- More expensive than straight flute
- Re-grinding of flute is difficult
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| Left-hand helix VS Right-hand helix |
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Left Hand |
- Better burnishing effect, more friction
- Cutting chips move forward
- Suitable for non-fellow material such as
aluminum
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Right Hand |
- Suitable for hard material
- Cutting chips move backward. Suitable for blind-holes
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