28mm Core Drilling Starter Kit - set of 5 B Block The B172 Block is built

The B172 Block is built to help you hit the mark every time – no expensive rigs

Block Dimensions: 110mm x 75mm (Note: this refers to block size

The B140 Block is built to help you hit the mark every time – no expensive rigs

Core Bit Fit: Designed for 57mm Core Drill Bits

28mm Core Drilling Starter Kit - set of 5 B Block The B172 Block is builtDescription The 28mm Core Drilling Starter Kit is built for precision critical work delivering outstanding accuracy when you need every hole to hit the mark. Ideal for seismic or structural installations where exact placement matters. These Core Drill Starters are designed to sit neatly inside your small core drill barrels. Each Core Drill Starter is good for around 20 holes so youll easily get 100+ holes per kit. How to Use: Drill a 5 32" pilot hole