Marcrist PG850 Wet Diamond Tile Drilling Piping Kit

The Marcrist PG850 wet diamond tile piping kit is about as complete as a tile drilling setup gets. Everything arrives together in a Marcrist Systainer: five diamond core drills, a water swivel with connector, a universal drill guide, a water bottle and two metres of 8mm tubing. You are not hunting around for missing parts on the morning of the job. It is all there.

What sets the PG850 drills apart from the usual offering is the diamond spec. Marcrist use natural South African diamonds rather than the synthetic diamonds found in most competing products. The difference shows up in longevity in a way that is hard to argue with: up to 2,800 holes in ceramics, up to 1,500 holes in softer grade 1 porcelain, and still a very respectable 700 holes in grade 5 porcelain, which is the hard stuff that eats through lesser bits like they are made of chalk. For a tiler who is putting in serious volume, those numbers matter.

The kit is wet-only, which is non-negotiable with diamond drilling into hard tile. Water keeps the bit cool, flushes the slurry, and extends drill life significantly. The included water swivel makes delivering that water clean and consistent, without the improvised setups that tend to make a mess. The universal drill guide helps get the hole started accurately without skating across a glazed surface, which anyone who has tried to freehand a core drill into polished porcelain will appreciate.

What the Marcrist PG850 Piping Kit Covers

The five drill sizes in the kit are 15mm, 19mm, 26mm, 36mm and 44mm. Between them, those cover the majority of pipework penetrations, isolation valve cutouts, shower mixer holes and sanitaryware fixing points a plumber or tiler will encounter day to day. You are not going to need a second kit for most standard jobs.

The Money-Back Guarantee

Marcrist back the PG850 drills with a straightforward guarantee: the best diamond tool you have ever used, or your money back. That is not a claim you make lightly about a drill kit. It suggests they are confident the product will do exactly what it says once you have used it properly with water throughout.

If you drill tile regularly and you are still burning through cheap bits every few weeks, the PG850 kit is the kind of investment that pays for itself over a single decent run of bathroom or wet room installations.