6 3 4 straight edge square 52 431 006 0

•  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)


*Image shown for representational purposes only

Blade Length:  6-3/4”³
Beam Length:  4”³

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