Diamond Cutting Discs

Bosch diamond cutting disc Best for Universal 115mm.

Bosch diamond cutting disc 115mm universal.

Person wearing safety equipment uses a power saw to cut a concrete slab outdoors.

Person wearing safety equipment cuts concrete slab with a handheld power saw.

Best for Universal Diamond Cutting Disc

For small angle grinders

Best for Universal Diamond Cutting Disc provides fast cuts in universal building materials

Special Speedteq segment design and 3Dteq diamond arrangement ensures highly rapid cutting
Optimised diamond matrix provides fastest cuts in all sorts of building materials
With 22.23 mm bore for standard locking nut angle grinders

Materials

Select options

Diameter mm

105

125

Bore diameter mm

20.00/16.00

22.23/20.00

Cutting width mm

2.0

Choose a pack size

1 Pcs

Diameter mm 2 options

Bore diameter mm 2 options

Cutting width mm 2.0

Choose a pack size 1 Pcs

Available product options (2)

Your Selected Variant

Best for Universal Diamond Cutting Disc

For small angle grinders

Fits tools of most brands

Angle grinder with detached diamond blade and tool for blade assembly.

Diamond saw blade and locking tool assembly shown for a handheld power grinder.

Angle grinder with diamond blade attachment, tool body shown in blue.

With 22.23 mm bore for standard locking nut angle grinders

Fast Cuts in Universal Building Materials

Best for Universal Diamond Cutting Disc provides fast cuts in universal building materials

Optimised diamond matrix provides fastest cuts in all sorts of building materials
Laser-welded diamond cutting segments (15-mm height) are robust for high-speed work

Product Options

Available product options: 2

	Part number	Diameter mm	Bore diameter mm	Cutting width mm	Segment height mm	Pack quantity	Price	Availability
	2 608 603 309	105	20.00/16.00	-	-	1 Pcs		Find a local dealer
	2 608 603 329	125	22.23/20.00	2.0	12	1 Pcs		Find a local dealer

out of products

Fast Cuts

Frequently asked questions

Interface

Can I use a Bosch blade with other brands' power tools?

Most Bosch accessories are also compatible with competitors' power tools - look out for the ‘Universal Brand Fit’ logo on the packaging.

Can I use a diamond blade with a different machine than specified?

Diamond cutting blades are developed for specific machines and their diameters, therefore you should always use the diameter that’s mentioned in the power tool manual.

Diamond blade being mounted onto an angle grinder with a handle.

How do I mount a disc correctly?

Never use a cutting disc without a flange. Use only the original Bosch nut and flange. Make sure you mount the flange on the correct side. You can use a BOSCH SDS click nut instead of the normal nut.

Incorrect and correct ways to attach a nut onto a circular saw blade.

How do I ensure a diamond cutting disc is mounted for the correct rotation direction?

An indicator of the rotation direction is usually positioned on the head of the power tool. The rotation direction is also displayed on the label and the laser marking of the accessory. The rotation direction of the disc and the power tool has to match.

Correct and incorrect ways to attach a guard to a grinder, illustrated with directional arrows.

Can I enlarge the disc's borehole in order to mount it on a different machine

Never enlarge the cutting disc's borehole because the accessory is released only for specific machines. Diamond cutting discs are available with different boreholes and outer diameters - please choose a disc with the right dimensions for your machine and do not adapt them yourself.

Incorrect and correct methods of using a diamond saw blade shown side by side.

Can I use blades with a different borehole diameter on my machine?

No, you should only use blades that fit your power tool. Never remove the safety guard to fit a bigger diameter. The spindle should fit the disc's borehole.

Diagram showing correct and incorrect ways to mount a circular saw blade on a power tool.

Can I remove the reduction ring and use the disc without it?

Yes, reduction rings can be removed and you can use the disc for another machine type - both borehole diameters are displayed on the packaging. To press the removed reduction ring back into the blade, use a stable base to make sure you don't bend the blade. Do not insert a reduction ring if the product was delivered without one, and never use third party reduction rings.

Correct and incorrect placement of a washer on a circular saw blade is shown.

Material

Can I use a product for other materials not displayed on the packaging?

Our products are generally only recommended for materials that are displayed on the packaging.

Which diamond cutting blade can be used on metal?

The EXPERT Diamond Metal Wheel has been specifically designed to cut metal; most other diamond cutting discs are not suitable. Some multi material discs like Best for Universal or Best for Concrete can be used to cut rebar inside reinforced concrete, but they should not be used for pure metal applications. Each accessory has the materials you should use it for displayed on the back of the packaging.

Which diamond cutting blade is suitable for glass?

We don't currently have a glass-cutting diamond blade in our portfolio.

Can I remove the joints between tiles with a diamond cutting disc?

Diamond cutting blades are not designed for this application and might damage the tiles. We recommend using a Bosch oscillating multitool to remove the joints without damaging the tiles.

Other Topics

Do diamond accessories expire?

Diamond accessories don't expire and you can use them for a very long time. If you see a date on your diamond accessory, it's the manufacturing date we need to trace the product.

Diamond blade being checked for manufacture date then used with a power tool, not discarded.

Is it normal that my tool vibrates even during an idle run?

Slight vibrations are normal. They are due to the high power of the machine and the tolerances of the accessory. The system will automatically reduce the level of vibrations when you start using your tool. Stronger vibrations can be caused by the damage to the spindle or the blade itself. In this case, you'll need to replace these parts.

The product was described as ‘professional’ but on the blade it says ‘Standard’. Why did I receive a different product?

Bosch changed the naming of different performance classes in the past. Standard was called Professional, but it's the same product. We are currently updating the naming to Bosch, PRO and EXPERT.

Which dimensions are represented by the numbers on the packaging?

Outer diameter x bore hole x thickness x segment height (e.g. 180 x 22.23 x 2.2 x 5)

Can this blade deliver a high quality cut in tiles without chipping?

Designed to cut tiles, the disc has continuous rims to reduce chipping, but with the hardest tiles even this is not always enough. The EXPERT HardCeramic tile disc is Bosch’s top performance diamond disc for hard tiles. Thanks to a series of technologies and design features it makes the cleanest cuts. In thicker tiles and stone slabs (over 10 mm), using a wet cutter and a designated tile blade will give you the best results.

Safety

What protective equipment do I need to work with diamond cutting blades?

You need safety googles, ear protection, dust mask, working gloves and safety shoes to work with diamond cutting discs.

A person uses a grinder on scaffolding, wearing safety equipment on the right side.

Can I still use a diamond cutting blade if it shows damage such as cracks?

No, this is unsafe. You should inspect blades regularly and throw away damaged ones.

Magnifying glass inspects cutting discs to compare worn and intact blade edges.

What is the optimal RPM for cutting?

All products are released with the maximum possible RPM for their diameter. We recommend using the full RPM of your machine, provided it does not exceed the RPM displayed on the cutting disc.

Angle grinder compared with two disc speeds, one exceeding the disc’s maximum rpm limit.

Which safety guard I should use with diamond cutting blades?

You should use safety guards with combined dust extraction linked to a vacuum cleaner. They are the best solution, as they keep you safe and reduce the amount of airborne dust. Never use the angle grinder with no safety guard!

Technique

My diamond cutting blade cuts more slowly than before. Has it gone blunt?

Diamond grits can get damaged through overheating or wear out with time, leading to slow cutting speeds. However, diamond discs are self-sharpening: a few cuts in abrasive materials like concrete or stone should bring new diamond edges to the surface of the matrix, improving the cutting speed.

Power tool cutting through concrete, zoomed in to show different blade compositions.

Can I use this product for dry or wet cutting?

Please always read the manuals of your power tool and accessories to ensure you can use them for either wet or dry cutting. For example, electric angle grinders are not suitable for wet cutting due to the risk of an electric shock – no matter which accessory you're using.

Water-cooled table saws and tile cutters shown with a check mark for water use.

Can I use diamond cutting discs also for grinding applications?

No. Diamond cutting discs are only designed to cut. Side grinding can damage the blades and lead to major injuries. Please use suitable diamond cup wheels for grinding.

Person wearing safety equipment uses an angle grinder correctly to cut a straight line.

Find Bosch Professional dealers near you