Combination rafter square, tape measure, and level

作者: Gregory McRae

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摘要: A combination hand tool for carpenters, including a housing formed of first and second triangular rafter square plates, side, base, hypotenuse. tape measure is captured between the plates has an extendable/retractable with hook disposed in side housing. At least one level bubble positioned may be viewed through at plates.

参考文章(7)
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Michael R. Hastings, John E. Remillard, Combination tape measure and straight edge apparatus ,(1994)
Gregory A. Mosbrucker, Multi-purpose square ,(1992)
Lin Xiaozhong, Universal tape measure ,(1997)