Bosch 2608902398 Review

An oscillating multi-tool is only as good as the blade you put in it. The tool itself provides the motion — the rapid, microscopic oscillation that makes these machines so versatile — but it is the blade that does the actual cutting, and the difference between a quality blade and a cheap one is enormous. A good blade cuts faster, stays sharp longer, produces cleaner edges with less splintering, and generates less heat that can discolour timber or burn delicate finishes. A poor blade wanders from your cut line, dulls after a handful of cuts, and forces you to push harder — which strains the tool motor, fatigues your hands, and produces rough, imprecise results. Whether you are a professional tradesperson who goes through blades weekly or a serious renovator tackling a specific project, investing in premium blades transforms how your multi-tool performs and makes every cut faster, cleaner, and more controlled.

When shopping for multi-tool blades, there are three key things to look at: the material the blade is made from, the tooth design, and the interface that connects it to your tool. Bi-metal blades combine a flexible steel body with hardened cutting teeth, giving you a blade that resists snapping while maintaining a sharp edge through tough materials. Carbide-tipped blades go a step further, with teeth made from one of the hardest materials available — they excel at cutting abrasive materials like glass-fibre reinforced plastics, cement-based boards, and nail-embedded timber. The Starlock interface is an industry-standard mounting system that provides a secure, wobble-free connection and allows tool-free blade changes in seconds. Bosch Professional blades are engineered for tradespeople who need maximum performance and durability, and this 11-piece promotional set bundles their premium PRO and EXPERT blade ranges together.

This review examines the Bosch Professional 11-piece PRO AIZ 32 APIB blade set. We cover the blade types included and what materials each is suited for, the Curved-Tec tooth design that sets these blades apart, the Starlock interface and compatibility, real-world durability and how it compares to standard blades, and whether the price represents good value for the quantity and quality of blades you receive. With feedback from early adopters, we also assess how these blades perform across different materials in real workshop conditions.

The Bosch Professional 11-piece PRO AIZ 32 APIB promotional set bundles a selection of high-performance multi-tool plunge cutting blades into a single package weighing approximately 300 g. The set combines two tiers of Bosch Professional's professional blade range: the PRO AIZ 32 APIB bi-metal blades, which are designed for strength and endurance in wood, metal, and mixed materials, and the EXPERT AIZ 32 APILT carbide-tipped blades for exceptionally demanding applications like glass-fibre reinforced plastics (GFK/CFK), cement fibre boards, and nail-embedded timber. Bosch Professional claims the PRO bi-metal blades last up to five times longer than their standard AIZ 20 AB blade — a significant longevity improvement that means fewer blade changes and lower long-term consumable costs for high-volume users. All blades in the set use the Starlock mounting interface, which provides a secure, three-dimensional connection that transfers more of the tool's oscillation energy directly into the cut than older OIS-style mounts.

The standout design feature across this set is Bosch Professional's Curved-Tec tooth geometry. Traditional multi-tool blades have straight tooth rows that tend to catch and chatter when starting a plunge cut — the initial contact with the material surface creates vibration that makes it difficult to keep the blade exactly on your cut line. Curved-Tec addresses this by shaping the cutting edge with a slight curve that engages the material progressively rather than all at once. The result is noticeably smoother plunge cuts with less vibration and more precise starting accuracy — important when you are cutting into a finished surface where a wandering blade could cause expensive damage. The PRO blades feature a durable tooth coating that reduces friction and heat build-up during cutting, while the EXPERT blades use ultra-hard carbide teeth brazed onto the steel body for extreme durability in abrasive materials.

In practical use, these blades deliver exactly what professionals expect from the blue Bosch range. The PRO bi-metal blades cut through hardwood, softwood, plywood, and non-ferrous metals cleanly and without excessive heat discolouration on the workpiece. The Curved-Tec geometry makes a real difference when starting plunge cuts — the blade bites in smoothly rather than skating across the surface, which saves time and reduces the risk of marking adjacent surfaces. The EXPERT carbide blades tackle materials that would destroy a standard bi-metal blade in seconds: cutting openings in cement-bonded particle board, trimming glass-fibre reinforced panels, and cutting through timber containing hidden nails or screws. The extended length of the EXPERT AIZ 32 APILT blade allows plunge cuts up to 45 mm deep, which covers most common applications including cutting through standard plasterboard and timber studs in a single pass.

The Starlock interface on every blade in this set means they are compatible with all Starlock and StarlockPlus multi-tools from Bosch Professional, Fein, and other manufacturers who have adopted the standard. The mounting system is genuinely tool-free: release the lever on your Starlock-compatible multi-tool, drop in the new blade, close the lever, and you are ready to cut — the whole process takes about three seconds. This matters when you are on a job site alternating between tasks that need different blade types. The 11-piece set provides enough blades to cover multiple projects, and having spares on hand means you never stop work because your only suitable blade has gone dull. The blades come in compact retail packaging measuring approximately 105 × 72 × 27 mm.

This 11-piece Bosch Professional Professional blade set holds a rating of 4.7 out of 5 stars from 18 early adopters on Amazon, ranking at number 161 in Circular Saw Blades. Launched in September 2024, it is a relatively recent addition to the Bosch Professional range and the review base is still growing. At approximately €67.27, the per-blade cost works out to roughly €6.10 — competitive for professional-grade Starlock blades, especially considering that the set includes premium carbide EXPERT blades alongside the PRO bi-metal ones. For professional tradespeople, serious renovators, and anyone who values cut quality and blade longevity, this set represents a sensible investment in keeping your multi-tool performing at its best across a wide range of materials.

A professional-grade 11-piece Starlock multi-tool blade set for tradespeople and serious renovators who need durable, high-performance plunge cutting blades for wood, metal, plastics, and abrasive composite materials.