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″
Beam Length: 4″

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