| 摘要 |
An angle measuring tool for us in combination with a standard framing square. A saddle protractor having a plurality of alignment tabs is engaged with a standard framing square by placing the saddle protractor in fact to face contact with the framing square and in alignment with the alignment tabs. Various incremental indicia on both sides of the saddle protractor depict angular measurements as measured from a pivot point on the saddle protractor. Other alignment tabs and pivot points on the saddle protractor also allow the saddle protractor to be used as a miter layout device to scribe various cutting angles on material having angular cuts.
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