- Three measuring heads are attached to the stainless steel rule (blade) allowing versatile
measurements on various types of work pieces.
- Square head is used to set the ruler at 90° or 45° to an edge of a work piece.
- Center head is used to locate centers of round work pieces.
- Protractor head is used to set the ruler at a desired angle to an edge of a work piece.
Also used for measuring angles.
- The measuring heads are hardened.