B1 ½” – Fits 1 ½ Inch Core Bit – Standard Block (Imperial) Style:With Bolt the B152 delivers bulls-eye accuracy

the B152 delivers bulls-eye accuracy

The B92 Block is built to help you hit the mark every time – no expensive rigs

or manholes

The B116 Block is built to help you hit the mark every time – no expensive rigs

Core Bit Fit: Designed for 9 ½ Inch (241mm) Core Drill Bits

B1 ½” – Fits 1 ½ Inch Core Bit – Standard Block (Imperial) Style:With Bolt the B152 delivers bulls-eye accuracyDesigned for precision, safety, and speed when core drilling by hand. The B1 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 B1 delivers bulls eye accuracy, faster setup, and safer operation on concrete walls, floors, manholes, pipes and more. Key Features: Core Bit Fit: Designed for 1