B1 ½” – Fits 1 ½ Inch Core Bit – Standard Block (Imperial) Style:With Bolt Block Weight: 598

Block Weight: 598

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

The B6 ½” Block is built to help you hit the mark every time – no expensive rigs

or manholes

Core Bit Fit: Designed for 242mm Core Drill Bits

B1 ½” – Fits 1 ½ Inch Core Bit – Standard Block (Imperial) Style:With Bolt Block Weight: 598Designed 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