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Aluminium circular saw blade size, bore and speed

Updated: October 2026

You already own the saw. The job is a length of aluminium fascia or a short piece of box, and the amazon.co.uk title says the blade will cut it. An aluminium circular saw blade size and bore that do not match the machine will not become right because the title says aluminium. The [circular saw blade for aluminium comparison](/hub/saw-accessories/circular-saw-blade-for-aluminium) ranks the eleven listings we checked on 16 October 2026. This page is the order of those checks. This is the Products Compared editorial team. We compared public UK listings, not a lab, and a qualifying purchase can earn a commission at no extra cost to you.

You already own the saw. The job is a length of aluminium fascia or a short piece of box, and the amazon.co.uk title says the blade will cut it.

Our top picks

Saxton Saxton TCT16048TMB 160 mm 48T

Best overall

Saxton Saxton TCT16048TMB 160 mm 48T
8.8/10about £18.99
FOCSTOL FOCSTOL 305 mm 100T TCG

Alternative

FOCSTOL FOCSTOL 305 mm 100T TCG
7.2/10about £29.99
On this page

Start with the saw, not the brand

The three numbers on the plate are diameter, bore and tooth count. The diameter must not exceed the saw. A 165 mm cordless saw is a different machine from a 210 mm table saw and from a 305 mm mitre saw. Bore is the hole, not the kerf. Swiftfix’s note is to press or glue a reducing ring in place, and not to use it if the flange is not more than 5 mm larger than the original bore. Saxton’s 160 mm blade includes a 16 mm ring. EXFEIN includes a 20 mm to 15.875 mm washer. METAK mentions adapters in the title, and the components line says only the blade.

The marked speed is a ceiling

Electrical Safety First’s advice is the UK line to keep. The blade’s rpm rating should be higher than the speed the saw can produce, and a mains saw uses a BS 1363 three-pin plug. BATIOPV’s bullet states 2,800 rpm, and a UK review says the plate is marked 1,300 rpm. Match the saw to the lower figure you can see on the metal. If the listing omits a maximum, do not invent one from a star rating. If the manual does not state the saw’s speed, stop. The cut sequence is on the how to cut aluminium page.

Read the materials sentence

Aluminium in the title does not mean the blade is sold only for aluminium. Trend’s 210 mm blade is 72 teeth for aluminium and plastic, with a stated −6° hook, at £21.75. The two 305 mm blades are 100-tooth TCG for aluminium, other non-ferrous metal and plastic. That is tooth form, not a finish score. BAUBECK is 255 mm and 28 teeth, and the UK reviews are timber and skirting. BS EN 847-1:2017 is a woodworking standard, not an aluminium certificate. If the materials sentence names steel, that argument is on the aluminium blade versus a steel blade page.

What the box must contain

A reducing ring in the title is not in the box until the included-components line or the parcel says so. METAK’s adapters are in the title only. Saxton, EXFEIN and FOCSTOL name a ring or washer. Before the first cut, confirm the diameter and the guard, the bore or the ring, the direction arrow, a printed maximum above the saw, and a materials sentence that names the metal. The shared METAK line, 4.6 from 450 reviews, is not a reason to skip the bore check. Once the checks pass, the best blade for the job page is where a job gets a listing.

Common questions

What diameter can this saw take?
The saw sets the diameter, and the blade must not be larger than that limit. In this set the small plates are 140 mm, 160 mm and 165 mm, the mid sizes are 210 mm and 255 mm, and the mitre size is 305 mm. A 305 mm, 30 mm blade will not fit a 165 mm cordless saw that needs a 20 mm bore. Read the guard and the manual for the machine you own, then match one of those plates.
Is a 30 mm bore usable on a 20 mm arbor?
Only with a reducing ring that is in the box, seated in the plate, and clamped by flanges that still grip the blade. Swiftfix’s condition is that the flange should be more than 5 mm larger than the original bore. If it is not, the ring does not make a 30 mm hole safe on a 20 mm arbor. A blade bored to 20 mm is the simpler buy for that saw.
When is a reducing ring unsafe?
A ring is unsafe when it is loose, when it is only mentioned in the title, or when the flange is not more than 5 mm larger than the original bore. Press or glue the ring as the ring maker describes, and stop if the plate can shift under the flange. METAK’s adapters are in the title, while the components line says only the blade, so treat that ring as unconfirmed until you see it.
Where is the maximum rpm, and what if the listing omits it?
Look on the blade, then in the specification bullet. Saxton prints 3,800 rpm, BATIOPV’s bullet prints 2,800 rpm, EXFEIN and the 165 mm BRSCHNITT print a 5,000 rpm maximum with a lower recommended speed, and both 305 mm blades print 4,500 rpm. Trend, METAK and BAUBECK do not print a maximum in these files. If it is missing, you cannot check the saw against a ceiling, and you should not invent one.
Does aluminium in the title mean the blade is not also sold for steel?
No. Saxton, EXFEIN, the 165 mm BRSCHNITT and BATIOPV name aluminium and also name steel or iron. Trend’s highlights name aluminium and plastic. Read the materials sentence on the listing you are buying.

Related pages

Sources

Public UK sources used for this comparison. Listing prices, stars, and review counts are from amazon.co.uk extracts dated 16 October 2026.

  1. PUWER 1998, regulation 11 — guarding duty for employers (retrieved 16 October 2026)
  2. HSE EIS12 — pivoting-head metal-cutting circular saws (retrieved 16 October 2026)
  3. HSE WIS16 — circular saw benches (retrieved 16 October 2026)
  4. BS EN 847-1:2017 — tools for woodworking, circular saw blades (retrieved 16 October 2026)
  5. Knotwood UK cutting, storage and handling guide (June 2025) (retrieved 16 October 2026)
  6. Trend aluminium and plastic blade range (retrieved 16 October 2026)
  7. Addison Saws — why aluminium loads a blade (retrieved 16 October 2026)
  8. Electrical Safety First — circular saws (retrieved 16 October 2026)