Part #: 52-431-010
Straight Edge Square # 52-431-010
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- Length of the blade is measured from the inner edge of beam to end of blades.
- Squares fully hardened to Rockwell 55C.
- Beams and blades are ground and lapped for straightness and parallelism.
- Both the inside and outside of the squares have accurate right angles.
- Packed in individual cartons.
- Designed for precision layout and measurement work which requires high accuracy.
- Accuracy = .0002" + Length/50,000 (blade)