Bosch 2608644119 Review

Cutting aluminium with the wrong saw blade is an exercise in frustration at best and dangerous at worst. A standard wood-cutting blade clogs almost instantly as the soft metal gums up the teeth, overheats, and can kick back violently. The noise is deafening, the cut edge is ragged with burrs, and the blade is effectively ruined after a single pass. A blade designed specifically for aluminium is an entirely different proposition. It uses a negative or low-positive hook angle on the teeth to prevent the blade from grabbing and pulling the workpiece, a high tooth count for a clean cut, and a special carbide grade that resists the abrasive wear that aluminium inflicts on cutting edges. The result is a cut that is smooth, burr-free, and accurate — often good enough to go straight to assembly without filing or sanding. For anyone who regularly cuts aluminium profiles, composite panels, or non-ferrous metals on a mitre saw or table saw, a dedicated aluminium blade is not a luxury — it transforms the quality of the work and the safety of the process.

Selecting the right aluminium saw blade means matching three key specifications to your saw and your work. First, the diameter — 250 millimetres is a common size for mitre saws and mid-size table saws, giving a generous cutting capacity. Second, the bore size — 30 millimetres is standard for many European machines, and the blade should include reduction rings to adapt to smaller arbour sizes. Third, the tooth count: an aluminium blade typically has between 60 and 80 teeth, far more than a general-purpose wood blade of the same diameter. More teeth mean each tooth takes a smaller bite, producing a cleaner cut with less heat build-up. Look for blades with a triple-chip grind tooth geometry — alternating flat-top and chamfered teeth — which is the proven design for non-ferrous metals. A coating that reduces friction and prevents aluminium from sticking to the blade body extends both blade life and cut quality. Carbide-grade quality is the hardest thing to evaluate from a specification sheet but it is what separates a blade that lasts for hundreds of cuts from one that dulls after a dozen. Premium manufacturers like Bosch invest in carbide technology that keeps teeth sharp through extended production runs.

This review looks at a 250-millimetre, 68-tooth aluminium-specific circular saw blade from Bosch's EXPERT accessory range. We will cover the specifications, tooth geometry, build quality, and what kind of cuts it produces in real aluminium profiles and sheet material.

The blade measures 250 millimetres in diameter with a 30-millimetre bore and a kerf — the width of the cut — of 2.8 millimetres. It carries 68 carbide-tipped teeth arranged with a tooth geometry optimised for aluminium and non-ferrous metals. The high tooth count relative to a general-purpose blade means each tooth removes a smaller chip, which reduces heat generation and produces a cleaner cut edge. The teeth are manufactured using Bosch's proprietary Carbide Technology, which uses fine-grain carbide that holds a sharp edge longer and resists the micro-chipping that dulls standard carbide in abrasive aluminium alloys.

Several design features address the specific challenges of cutting aluminium. The blade body is coated with an anti-friction layer that prevents the soft, sticky aluminium swarf from welding itself to the blade surface — a common problem that builds up heat and increases cutting resistance with every pass. The coating also provides corrosion protection, which matters because aluminium dust combined with workshop humidity can corrode unprotected steel. The expansion slots cut into the blade body allow it to expand evenly as it heats up during cutting, preventing warping that would cause the blade to wobble and produce an uneven cut. The bore is compatible with reduction rings — not always included, so check before purchasing — to fit saws with smaller arbour sizes.

The blade is designed primarily for stationary saws — mitre saws and table saws — where the workpiece is securely clamped and the saw is fixed in position. This is important because cutting aluminium on a handheld circular saw introduces variables in feed rate and workpiece stability that can lead to dangerous kickback. On a properly set-up mitre saw with the material clamped, the blade produces clean, square cuts in aluminium profiles, channels, and tubes with minimal burring. The cut quality is typically good enough that the piece can go straight to assembly or welding without secondary filing or deburring operations.

The blade is manufactured in Italy and comes individually packaged. It weighs approximately 0.71 kilograms — standard for a 250-millimetre blade of this specification. The packaging clearly labels it as part of the EXPERT range, Bosch's professional accessory line positioned above the standard green DIY accessories. The blade is compatible with any saw that accepts a 250-millimetre blade with a 30-millimetre bore, which covers the majority of European mitre and table saws from brands like Bosch, Metabo, DeWalt, Makita, and Evolution.

The blade holds a 4.2 out of 5 star rating from 14 customer reviews on Amazon and ranks at number 1,458 in the circular saw blades category — a niche position that reflects its specialised application rather than any quality concern. At around 71 euros for a single blade, this sits at the premium end of the circular saw blade market. However, the price is justified by the carbide quality, the specialised aluminium tooth geometry, and the anti-friction coating — features that are simply absent from budget blades. For a professional fabricator or serious metalworker who cuts aluminium regularly, a premium blade pays for itself in time saved on deburring and in the extended interval between blade replacements.

A premium 68-tooth circular saw blade optimised for cutting aluminium profiles, channels, and sheet on stationary mitre saws and table saws — for professional fabricators, metalworkers, and serious DIYers who demand clean, burr-free cuts.