Core Bit 2" (78 mm * 420 mm)

Core Bit 3" (82 mm * 420 mm)

Core Bit 4" (102 mm * 420 mm)

Core Bit 4" (112 mm * 420 mm)

Core Bit 4" (122 mm * 420 mm)

Core Bit 5" (127 mm * 420 mm)

Core Bit 5" (152 mm * 420 mm)

Core Bit 8" (202 mm * 450 mm)

Core Bit 4" (112 mm * 1000 mm)

Core Bit 5" (152 mm * 1000 mm) Click here Drill Bit Size Guide