Festool Diamond Blades
Festool diamond blades for clean, controlled cutting in concrete and masonry, when you need a disc that tracks straight and doesn't glaze up mid-job.
When you're cutting out for drains, trimming lintels, or chasing into block all day, the disc matters as much as the grinder. Festool diamond cutting discs are built to keep the cut moving, stay stable under load, and leave you with less breakout and less rework. Pick the right Festool grinder blades for the material and get back to the graft.
What Are Festool Diamond Blades Used For?
- Cutting concrete slabs, kerbs, and padstones when you need a Festool concrete cutting disc that doesn't wander and keeps a consistent kerf.
- Chasing and trimming blockwork and brick for first-fix routes, where a proper Festool masonry blade helps reduce spalling on the face.
- Opening up for ducts, channels, and service entries on refurbs, where steady cutting saves you from cracking surrounding material.
- Squaring up edges on stone and masonry repairs, so you can patch cleanly without ragged breaks and messy joints.
Choosing the Right Festool Diamond Blades
Sorting the right disc is simple: match the blade to the material and the amount of cutting you're doing, not just the diameter that fits the grinder.
1. Material Match: Concrete vs Masonry
If you're mainly in hard concrete, go for a Festool concrete cutting disc designed for that density so it keeps biting instead of glazing. If you're on brick and block, a Festool masonry blade will usually cut faster and cleaner with less edge breakout.
2. Cut Speed vs Finish
If the cut edge is getting covered up or broken out anyway, prioritise a faster-cutting Festool diamond blade that clears dust well. If you need a neater edge for visible work or tight fit-ups, pick a disc aimed at cleaner cutting and keep the tool steady rather than forcing it.
3. How Much You're Cutting (Heat and Wear)
If it's occasional cut-ins, most discs will cope fine as long as you don't lean on them. If you're cutting all day, choose Festool diamond cutting discs that are made to handle sustained load, and let the disc do the work so you don't cook it and slow the job down.
Who Uses Festool Diamond Blades?
- Groundworkers and civils teams cutting slabs and concrete edges, because the right Festool diamond cutting discs keep progress up without constant dressing.
- Brickies and chippies on openings and alterations, using Festool grinder blades to trim masonry cleanly before lintels, frames, and make-good.
- Sparks and plumbers on heavy first-fix, when chasing block and concrete needs a disc that stays controlled and doesn't burn out halfway through the run.
- Maintenance and facilities teams doing reactive cut-outs, where a reliable Festool masonry blade saves time when you cannot afford a failed disc on site.
The Basics: Understanding Diamond Blades
Diamond blades do not "slice" like a toothed saw; they grind through mineral materials. Knowing how they wear and clear dust helps you pick the right disc and stop it dying early.
1. The Diamond Segment Is the Cutting Edge
The diamonds are held in a metal bond that wears away as you cut, exposing fresh grit. If the bond is wrong for the material, the disc can glaze over and stop cutting, which is why matching Festool diamond blades to concrete or masonry makes a real difference.
2. Dust Removal Is What Keeps It Cutting
Concrete and brick dust packs into the cut and builds heat, which slows the disc and shortens life. A disc that clears debris properly will feel smoother, track straighter, and keep the cut moving with less forcing.
Shop Festool Diamond Blades at ITS
Whether you need Festool diamond blades for concrete cut-ins or Festool masonry blades for brick and block, we stock the range so you can match the disc to the job. It's all held in our own warehouse, in stock and ready for next day delivery to keep your site moving.
Festool Diamond Blades FAQs
What is the best Festool diamond blade for concrete?
The best one is the Festool concrete cutting disc that matches the concrete you're actually cutting and the amount of work you're doing. For hard, cured concrete and longer runs, pick a blade intended for concrete so it keeps cutting instead of glazing; for lighter slabs or general site work, a more general-purpose Festool diamond blade can be the sensible choice.
Can Festool diamond blades cut through rebar?
They can nick or pass through the odd bar, but they are not a rebar-cutting solution and it will shorten disc life fast. If you're regularly hitting steel in reinforced concrete, plan the cut to avoid it where possible and use the right method for steel rather than expecting Festool diamond cutting discs to do both jobs all day.
Why has my diamond disc stopped cutting and started polishing the surface?
That is usually glazing, where the bond has effectively sealed over and the diamonds are not exposed properly. It happens when the disc is mismatched to the material or it has been overheated by forcing the cut, so back off, keep the cut clear, and make sure you are using the right Festool grinder blades for concrete or masonry.
Do I need a different disc for brick and block than I do for concrete?
Yes, if you want it to cut properly and last. Brick and block are generally softer and more abrasive, so a Festool masonry blade often cuts faster and cleaner there, while a Festool concrete cutting disc is built to stay effective in harder, denser material without burning out.
What is the quickest way to kill a diamond blade on site?
Leaning on it and letting it overheat is the fastest way. Keep the tool steady, let the disc do the work, and do not twist in the cut, because that is when you get heat, wobble, and premature wear on Festool diamond blades.
