• Made from a single piece of fully seasoned tool steel.
• Matte finish
• Beams and blades are ground and lapped for straightness and parallelism. Blades beveled both edges of each side.
• Squares fully hardened to Rockwell 55C.
• Packed in individual carton.
• Designed for layout & measurement work.
• Accuracy = .00008" + Length/100,000 (blade)
Beam Length:2 5/8″