BRSCHNITT Diamond Core Drill Bit 28 mm
Product description
Key points
Making a neat opening in porcelain or stone can be awkward with a general-purpose bit. This BRSCHNITT diamond core drill bit is made for drilling holes in porcelain tile, ceramic, bathroom tile, marble, granite, stone, masonry and brick. Its 28 mm size gives you a specific hole diameter to work with, while the vacuum-brazed diamond construction is designed for cutting through hard surfaces.
The bit has a 5/8-11 thread, a 10 mm diamond height and a total length of 60 mm. It can connect directly to an angle grinder, or be used with an electric drill and an adapter. Keep in mind that an adapter is needed for an electric drill, and the listing doesn't say whether one is included.
How to use it
The stated application includes dry drilling, which may suit jobs where setting up water is inconvenient. The manufacturer also notes that using water could extend the bit’s lifetime. That makes the choice practical: dry use is available, while adding water may be worth considering if you want to reduce wear over repeated work.
For example, if you’re making an opening in a bathroom tile for a pipe, the 28 mm diameter gives you a defined size to compare with the job before you start. Match the threaded connection to your tool, and remember that the electric-drill setup requires an adapter. The U-groove tooth shape and chip-removal design are intended to help clear material as you drill, but they aren’t a guarantee of a clean edge on every tile or stone.
Practical tips
Check the required hole diameter and the tool connection before choosing this bit. The 5/8-11 thread is a key fit detail, and the product description names direct connection to an angle grinder or an electric drill with an adapter. If your setup uses a different connection, the supplied details don’t establish compatibility.
The bit is a single piece, so it’s aimed at one particular hole size rather than a set of different diameters. That’s useful when you know the opening you need, a multi-size kit or a different drilling approach may make more sense if the job calls for several hole sizes. Water is presented as an option to help prolong its life, not as a stated requirement.
Three specific questions
What materials is it intended for? The listed materials include porcelain and bathroom tile, ceramic, marble, granite, stone, masonry and brick.
Can I use it with an electric drill? Yes, but the description specifies an adapter. It also lists direct connection to an angle grinder.
What do the measurements describe? The bit is 28 mm in diameter, with a 10 mm diamond height and a 60 mm total length.
In your case
It’s a good choice if you need a single 28 mm hole saw for tile or another listed hard material, and your tool matches the 5/8-11 connection. The dry-drilling option may also suit a smaller job where water setup would be inconvenient, though using water could help extend the bit’s life.
It may not be the best choice if you need multiple hole sizes, don’t have a compatible tool connection, or expect a guaranteed chip-free result. The description gives no further detail about the adapter or specific operating conditions, so those points matter when planning the job.