B82 – Fits 82mm Core Bit – Standard Block (Metric) Style:With Bolt Block Dimensions: 173mm x 75mm

Block Dimensions: 173mm x 75mm (Note: this refers to block size

Core Bit Fit: Designed for 7 ¼ Inch (184mm) Core Drill Bits

the B4 ¾” delivers bulls-eye accuracy

Core Bit Fit: Designed for 186mm Core Drill Bits

the B200 delivers bulls-eye accuracy

B82 – Fits 82mm Core Bit – Standard Block (Metric) Style:With Bolt Block Dimensions: 173mm x 75mmDesigned for precision, safety, and speed when core drilling by hand. The B82 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 B82 delivers bulls eye accuracy, faster setup, and safer operation on concrete walls, floors, manholes, pipes and more. Key Features: Core Bit Fit: Designed for