Carpenter's try square heavy has inch graduations, a spring steel blade, and a cast handle for marking and measuring right angles in woodworking. The blade has graduations on both sides of the blade that are etched and staggered in a height pattern for readability. The steel blade provides durability and rust-resistance, and the cast handle provides durability. Try square is good for marking and measuring right angles in woodworking Graduations. Marking on blade blade is etched and staggered in a height pattern for readability. ISO Certified Company