Use for scraping open cracks & digging out old compounds. High carbon steel blade is tempered and satin finished. Reinforced polypropylene handle is resistant to solvents. 1- 1/2" Stiff Blade Use for Scouring Opening Cracks & Digging Out Old Composite High Carbon Steel Blade is Tempered and Satin Finish Reinforced Polypropylene Handle is Solvent Resistant.