BOSCH HC8517 2-1/4-Inch X 22-Inch Sds-Max Rotary Hammer Core Bit , Gray
Brand: BOSCH
Color: Gray
Core bits with wave design deliver larger, cleaner holes up to 6-Inch in diameter
Carbide-tipped centering bit
Asymmetrical carbide teeth for faster cutting, longer life
All-in-one core transmits power directly to the end of the bit
Wave design transfers energy to bit more effectively for up to 40-Percent faster drilling vs. previous design