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How to choose a 190mm circular saw blade that fits

Updated: 22 October 2026

You are standing at the saw with a blunt disc and an amazon.co.uk tab full of 190 mm blades that do not describe themselves the same way. A 190mm circular saw blade is the right replacement only when the diameter, the bore and the ring match the machine you already own. Kerf and tooth count come next, and the price comes last. This page is that order of checks, taken from the amazon.co.uk files read on 19 October 2026. It is not a lab cut. A qualifying purchase can earn a commission at no extra cost to you. The whole set is on the [190x30 saw blade comparison](/hub/saw-accessories/190x30-saw-blade).

You are standing at the saw with a blunt disc and an amazon.co.uk tab full of 190 mm blades that do not describe themselves the same way.

Our top picks

Saxton Blades Saxton TCT19080T 80-tooth blade

Best overall

Saxton Blades Saxton TCT19080T 80-tooth blade
8.6/10about £14.49
View offer
Saxton Blades Saxton TCT19040T 40-tooth blade

Best value

Saxton Blades Saxton TCT19040T 40-tooth blade
8.5/10about £12.49
View offer
DeWalt DeWalt DT10304-QZ Extreme 24-tooth

Alternative

DeWalt DeWalt DT10304-QZ Extreme 24-tooth
6.5/10about £15.50
View offer
On this page
  1. 1.Diameter and bore
  2. 2.Rings and the flange
  3. 3.Kerf, plate and a thickness field of 30 mm
  4. 4.Tooth count is the next check, not the first
  5. 5.When the page disagrees with itself

Diameter and bore

Start with the two numbers stamped on the saw, not the cheapest title. DeWalt’s UK page for the DWE575K-GB states a 190 mm blade, a 30 mm bore, 5,200 rpm and a 67 mm depth of cut, supplied with a 24-tooth blade. That is the corded UK saw people mean by a 190x30 saw blade. Every kept listing claims 190 mm and a 30 mm hole somewhere, so diameter alone does not finish the job. A 16 mm or 20 mm arbor can use that hole only with a ring the flange can clamp.

Rings and the flange

A reducing ring lets a 30 mm bore sit on a smaller arbor only when it seats flush, sits slightly thinner than the plate, and is covered by the flange. Evolution’s leaflet and Trend’s instruction both say a loose bush is not a workaround. The Saxton files list 16 mm, 20 mm and 25 mm rings. CRALY lists 16 mm, 20 mm and 25.4 mm, so a 25 mm arbor and a 1 inch arbor are not the same hole. BAUBECK’s title lists 1 inch, 20 mm and 16 mm. Elite, Extreme and SabreCut list no ring.
Saxton Blades Saxton TCT19080T 80-tooth blade

Testsieger

Saxton Blades Saxton TCT19080T 80-tooth blade
8.6/10about £14.49
View offer

Kerf, plate and a thickness field of 30 mm

Kerf is the slot the teeth cut. Plate is the steel inside that slot. A thickness field of 30 mm is the bore copied into the wrong box, which is what both BAUBECK files and the Extreme file do. The Saxton 40-tooth bullets state a 2.4 mm kerf and a 1.6 mm plate. The Saxton 80-tooth bullets state a 2.4 mm kerf and no plate on amazon.co.uk. CRALY states a 2.0 mm kerf. LSHUZIYU states 2.4 mm. SabreCut’s thickness field says 1 mm, with no separate kerf. If the saw has a riving knife, use the riving knife page before tooth count. The knife has to be thicker than the plate and thinner than the kerf.

Tooth count is the next check, not the first

Once the blade fits, tooth count is the size of the chip. As a rule of thumb, not a line from BS EN 847-1, 24 teeth suit a fast rip, 40 suit general timber, and 60 or 80 suit a face you will see. HSE’s woodworking standards list points at BS EN 847-1 for the maximum speed on a blade. The DWE575K-GB is stated at 5,200 rpm. A multi-material bullet is not a mild-steel specification. Compel’s seller chart says mild steel wants a negative hook on a slow dry-cut saw.

When the page disagrees with itself

The Elite listing, DT10399-QZ, is titled as three 190 mm, 24-tooth blades, while the style name says Single, the material says Shell, and the dimensions say 190 by 19 centimetres. The Extreme, DT10304-QZ, is one 24-tooth framing blade whose set name says elite. BATIOPV’s title says 24, 48 and 60 teeth, the tooth field says 60, and the model is HCS90T. The two BAUBECK blades share the part BAU-CSB-PARENT-MULTI-PRO. Under the Consumer Rights Act 2015, section 11, goods should match the description. This page does not name a winner. The fine blade and the cheaper file that prints both widths are on the best 190x30 saw blade page.

Common questions

Is 190 mm the same as 184 mm?
No. DeWalt’s UK page for the DWE575K-GB states 190 mm and a 30 mm bore. A 184 mm blade is a smaller diameter and belongs on a different saw. Do not borrow the size from an American manual for a similarly named machine. A 184 mm disc changes the cut and the way the guard closes.
Do I need the 16 mm ring?
Only if the arbor is 16 mm. On the DWE575K-GB the bore is already 30 mm, so the ring stays in the packet. Saxton lists 16, 20 and 25 mm. CRALY lists 16, 20 and 25.4 mm. BAUBECK’s title lists 1 inch, 20 mm and 16 mm. Elite, Extreme and SabreCut list none. A ring you need still has to sit under the flange.
What if the thickness field says 30 mm?
Read 30 mm as a copied bore, not as the kerf. BAUBECK and the Extreme file both show it in that field. Where a kerf is printed in this set it is around 2.0 to 2.4 mm. Plate and kerf are different numbers. If the saw has a riving knife, you need both, or you stop and measure.
Which file is Elite and which is Extreme?
Elite in this set is DT10399-QZ, titled as three 24-tooth blades, with a style name of Single and a material field of Shell. Extreme is DT10304-QZ, one 24-tooth framing blade, whose set name says elite. The names collide inside the Amazon files. Use the model number, then check the UK product page, and do not assume the three-pack is the single disc because a field says so.
What if a review talks about a 254 mm blade?
Ignore it for this purchase. A comment about another diameter, or a review that is not marked United Kingdom and describes a different size, is not a test of the 190 mm disc. Use the title, the bore and the tooth count that agree, and leave the mismatched review out.

Related pages

24 tooth or 60 tooth circular saw blade

190x30 saw blade

Best 190x30 saw blade for the fine cut you will see

How to change a circular saw blade on a 30 mm bore

Riving knife too thick for a 190 mm circular saw blade

Sources

Public UK sources and maker pages from the research digest, last checked on 19 October 2026.

  1. HSE: Circular saw benches (rip saw) (retrieved 19.10.2026)
  2. HSE Woodworking Information Sheet WIS16 (retrieved 19.10.2026)
  3. HSE: Woodworking machinery standards (retrieved 19.10.2026)
  4. HSE L114: Safe use of woodworking machinery (retrieved 19.10.2026)
  5. Consumer Rights Act 2015, section 11 (retrieved 19.10.2026)
  6. DeWalt DWE575K-GB 190 mm circular saw (retrieved 19.10.2026)
  7. DeWalt DT10399-QZ Elite circular saw blade 3-pack (retrieved 19.10.2026)
  8. Trend CSB/19060TC 190 mm x 30 mm blade (retrieved 19.10.2026)