Irwin 326-012 Percussion Masonry Drill Bit, 3/8" x 12" Marine Accessories foam-paper-nylon system with advanced directional

foam-paper-nylon system with advanced directional air flow provides very clean air for better saw performance

The maximum pressure rating is 800 pounds per square inch (gauge) (psig) for water

recesses all plugs and eliminates having to cut multiple holes

Made of non-marking rubber

Irwin 326-012 Percussion Masonry Drill Bit, 3/8" x 12" Marine Accessories foam-paper-nylon system with advanced directionalHighlights: Diameter: 3 8" Overall Length: 13" Material: Chrome Vanadium Spring Steel Cutting Edge Material: Copper Braze Fits all hammer drills with 3 jaw or Jacobs chuck Chrome vanadium shaft through hardened to 50 53HrC Up to 150% faster than other competitive bits Shot peened, double tempered finish reduces breakage Hot isostatically pressed to extend life and resist breakage Copper braze material gives high heat resistance for reduced tip loss