Century Drill And Tool Multi Material Drill Bit 1/2″ Cutting Length 4″ Overall Length 6″ Size:1/2″ X 4″ X 6″ Base diameter 9-1/4″ (234mm)

Base diameter 9-1/4″ (234mm)

Use high temperature for better bonding to metal

Light-Duty

000 gallons for severe algae growth

Surface guard won't tear Tyvek® and felt

Century Drill And Tool Multi Material Drill Bit 1/2″ Cutting Length 4″ Overall Length 6″ Size:1/2″ X 4″ X 6″ Base diameter 9-1/4″ (234mm)Micro grain carbide tip provides maximum hardness and heat resistance reducing wear during extreme cutting applications. Self centering, 118 point with 4 sharpened edges bores through multiple materials easily and accurately without walking or wandering. S ground flute design optimizes material removal. Tips: For best result start by drilling through he softest material first and working yourself up to the hardest. Use percussion for concrete only.