Johnson Level RockRipper 24 In. Aluminum English/Metric Scoring Drywall Square

Perforated (1/16″ offset) blade accepts utility knife point for fast, efficient drywall scoring. Molded high impact head with hand grip and board guide. Screened, thermal-bonded black 1/8″ graduations. Large, bold graduations are easily read. Extruded aluminum blade assures durability.