| 摘要 |
A tool (100) for use in the construction of a stairway includes a height adjustment section (117) for measuring the height above a stair tread and a second measurement section (200) pivotably attached to the height adjustment section (117) for measuring an angle (alpha, beta) between the tool body (101) and the straight edge (213) on the second measurement section (200). The tool body (101) includes vertical clamp brace (103) and horizontal clamp brace (110) for attaching the tool body (101) to a stair tread.
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