12 4R Stainless Steel Rule For Combination Square Set
- Graduation: Protractor: 1º, Blade: 1mm, 64ths, 32nds, 1/2mm (E/M), 8ths, 16ths, 32nds, 64ths (4R) - Blades are hardened and tempered for durability - Square head has level and pointed attachment for hand scribing - Micro-fine blade graduations - Gauge heads are hardened cast finished in baked enamel with exception of the measurement faces.