L S Starrett Company 11H-6-4R - Cast Iron - Steel Square Combination Square Blade Length 6 Square Set Finish Wrinkled Black Graduation Style 4R
- Reversible square head for use with combination squares, combination sets, and bevel protractor blades to determine whether a part is square.
- Reversible lock bolt enables the blade to be turned over or flipped end-to-end without removing the bolt.
- Cast iron body with black-wrinkle finish provides durability and wear resistance.