B78 – Fits 78mm Core Bit – Standard Block (Metric)

Designed for precision, safety, and speed when core drilling by hand.

The B78 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 B78 delivers bulls-eye accuracy, faster setup, and safer operation on concrete, plastic, drain pipes, steel channel, wood and more.

Key Features:

• Core Bit Fit: Designed for 78mm Core Drill Bits
• Material: Polystone 7000 SH UHMWPE
• Lifespan: 80–100 holes (user and substrate-dependent)
• Compatibility: Compatible with Husqvarna, Hilti, Tusk, Full Boar, Milwaukee, Black Rock
• Versatile Use: Suitable for concrete, drain pipes, plastic, steel channel, wood

Product Details (for shipping only):

• Block Weight: 259.5g
• Block Dimensions: 69.5mm x 75mm (Note: this refers to block size, not the hole size this block is designed for)
• Colour: Black