Series 11H ? Satin Chrome Blade FEATURES: With reversible lock bolt, scriber, spirit level, and hardened steel, machine-divided blade with satin chrome finish. Cast iron heads with black wrinkle finish. 4R GRADUATIONS: 8ths, 16ths, Quick Reading 32nds, 64ths. C11H-18-4R STARRETT 18IN. 4R SATIN CHROME BLADE Blade Length : 18 Graduation : 4R Head Material : Cast Iron Model Number : C11H-18-4R Number of Pieces : 2Weight:1.5