A hand reamer has a longer taper or lead in at the
front than a machine reamer. It also allows the
reamer to start straight and reduce the risk of
breakage. The flutes may be straight or spiral.
| Diameter MM | Cutting Edge Length | Overall Length | Square size h11 | Square Length |
|---|---|---|---|---|
| 3.0 | 21 | 62 | - | - |
| 4.0 | 38 | 76 | 3.15 | 6.00 |
| 5.0 | 44 | 87 | 4.00 | 7.00 |
| 6.0 | 47 | 93 | 4.50 | 7.00 |
| 7.0 | 54 | 107 | 5.60 | 8.00 |
| 8.0 | 58 | 115 | 6.30 | 9.00 |
| 9.0 | 62 | 124 | 7.10 | 10.00 |
| 10.0 | 66 | 133 | 8.00 | 11.00 |
| 11.0 | 71 | 142 | 9.0 | 12.00 |
| 12.0 | 76 | 152 | 10.00 | 13.00 |
| 13.0 | 76 | 152 | 10.00 | 13.00 |
| 14.0 | 81 | 163 | 11.20 | 14.00 |
| 15.0 | 81 | 163 | 11.20 | 14.00 |
| 16.0 | 87 | 175 | 12.90 | 16.00 |
| 17.0 | 87 | 175 | 12.50 | 16.00 |
| 18.0 | 93 | 188 | 14.00 | 18.00 |
| 19.0 | 93 | 188 | 14.00 | 18.00 |
| 20.0 | 100 | 201 | 16.00 | 20.00 |
| 21.0 | 100 | 201 | 16.00 | 20.00 |
| 22.0 | 107 | 215 | 18.00 | 22.00 |
| 23.0 | 107 | 215 | 18.00 | 22.00 |
| 24.0 | 115 | 231 | 20.00 | 24.00 |
| 25.0 | 115 | 231 | 20.00 | 24.00 |
| 26.0 | 115 | 231 | 20.00 | 24.00 |
| 27.0 | 124 | 247 | 22.40 | 26.00 |
| 28.0 | 124 | 247 | 22.40 | 26.00 |
| 29.0 | 124 | 247 | 22.40 | 26.00 |
| 30.0 | 124 | 247 | 22.40 | 26.00 |
| 31.0 | 133 | 265 | 25.00 | 28.00 |
| 32.0 | 133 | 265 | 25.00 | 28.00 |
| 34.0 | 142 | 284 | 28.00 | 31.00 |
| 35.0 | 142 | 284 | 28.00 | 31.00 |
| 36.0 | 142 | 284 | 28.00 | 31.00 |
| 37.0 | 142 | 284 | 31.00 | 34.00 |
| 38.0 | 152 | 305 | 31.00 | 34.00 |
| 39.0 | 152 | 305 | 31.00 | 34.00 |
| 40.0 | 152 | 305 | 31.00 | 34.00 |
A hand Reamer has long taper or lead at the front than a machine reamer. It also allows the reamer to start straight and reduce the risk of breakage. The flutes may be straight or spiral.
Dimensions in mm
(They can also be manufactured as per US and EU standard sizes and specifications)