B6 ¾” – Fits 6 ¾ Inch Core Bit – Standard Block (Imperial) Style:With Bolt The B186 Block is built

The B186 Block is built to help you hit the mark every time – no expensive rigs

The B83 Block is built to help you hit the mark every time – no expensive rigs

The AB178 Block makes angled drilling simple

Core Bit Fit: Designed for 6 ¾ Inch Core Drill Bits

Block Dimensions: 163mm x 75mm (Note: this refers to block size

B6 ¾” – Fits 6 ¾ Inch Core Bit – Standard Block (Imperial) Style:With Bolt The B186 Block is builtDesigned for precision, safety, and speed when core drilling by hand. The B6 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 B6 delivers bulls eye accuracy, faster setup, and safer operation on concrete walls, floors, manholes, pipes and more. Key Features: Core Bit Fit: Designed for 6