Piranha PAVBDB HEX 1/4" Diamond Core Bit – Hex Shaft Coring Bit for Porcelain & Marble kerdi-kereck Attached acoustic underlayment — reduces

Attached acoustic underlayment — reduces hollow sound and adds warmth underfoot

so it expands and contracts at the same rate

it's already sloped to the center drain

Standard: EN 14404:2004+A1:2010 (Type 2

Piranha PAVBDB HEX 1/4" Diamond Core Bit – Hex Shaft Coring Bit for Porcelain & Marble kerdi-kereck Attached acoustic underlayment — reducesThe Piranha PAVBDB HEX 1 4" coring bit is a vacuum brazed diamond core bit built for clean, accurate holes in porcelain, marble, and stone. Its hexagonal shaft chucks directly into a standard drill, so you don't need a grinder or threaded adapter to get started. The combination of vacuum brazing and synthetic diamond helps the bit regulate heat for consistent cutting quality and a durable diamond to bit bond. Suitable for both wet and dry use, though