B102 – Fits 102mm Core Bit – Standard Block (Metric) Style:With Bolt the AB9 ¾” is trusted

the AB9 ¾” is trusted by professional drillers

the B254 delivers bulls-eye accuracy

the AB107 is trusted by professional drillers

Block Dimensions: 40mm x 75mm (Note: this refers to block size

Core Bit Fit: Designed for 76mm Core Drill Bits

B102 – Fits 102mm Core Bit – Standard Block (Metric) Style:With Bolt the AB9 ¾” is trustedDesigned for precision, safety, and speed when core drilling by hand. The B102 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 B102 delivers bulls eye accuracy, faster setup, and safer operation on concrete walls, floors, manholes, pipes and more. Key Features: Core Bit Fit: Designed for