B8 ½” – Fits 8 ½ Inch Core Bit – Standard Block (Imperial) B Block Core Bit Fit: Designed for

Core Bit Fit: Designed for 35mm Core Drill Bits

The B57 Block is built to help you hit the mark every time – no expensive rigs

The B172 Block is built to help you hit the mark every time – no expensive rigs

Core Bit Fit: Designed for 1 ¼ Inch (32mm) Core Drill Bits

Block Dimensions: 73

B8 ½” – Fits 8 ½ Inch Core Bit – Standard Block (Imperial) B Block Core Bit Fit: Designed forDesigned for precision, safety, and speed when core drilling by hand. The B8 Block is built to help you hit the mark every time no expensive rigs, no risky setups. Just accurate, safe, and efficient drilling. Trusted by core drillers, plumbers, sparkies, drain layers, and even DIYers, the B8 delivers bulls eye accuracy, faster setup, and safer operation on concrete walls, floors, manholes, pipes and more. Key Features: Core Bit Fit: Designed for 8