2" 3" 4" and 6" Hardened Steel Square Set

• Beams and blades ground and lapped for straightness and parallelism.

• Length of hardened blade is measured from inner edge of beam to end of blades.

• Designed for schools, apprenticeships and training programs.

• Beam grooved at inner corner for clearance of burrs and dirt.

• Squareness of the blade edge to the working face of the stock is .0006"