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Nkan NỌ. | A(ninu) | B(ninu) | C(ninu) | D(ninu) | Swing dia (ninu) | |
550-101 | 250-101 | 1 | 1/2 | 29/64 | 1-1/2 | 3/16-1/2 |
550-201 | 250-201 | 1-1/8 | 5/8 | 1/2 | 1-3/4 | 1/4-5/8 |
550-301 | 250-301 | 1-7/16 | 3/4 | 5/8 | 2-1/8 | 1/2-3/4 |
550-401 | 250-401 | 1-23/32 | 1 | 3/4 | 2-1/2 | 1/2-1 |