| 摘要 |
PROBLEM TO BE SOLVED: To provide a setter capable of inexpensively and easily predicting a lifetime in advance. SOLUTION: A setter 1 has a placing part 3 for placing a work, and a plate member 2 having a periphery 5 for placing no work, and a cutout 7 formed from an outer edge 5a of the periphery 5 of the member 2 toward the other outer edge 5b of the periphery 5 so that its extension line does not pass the part 3. Or, a through hole is provided at the periphery 5, and the cutout 7 is provided from the inner surface of the hole toward the edge 5a or 5b of the periphery 5. |
