Intro
A multi-tool is only as good as the blade you put in it. You can own the most powerful oscillating tool on the market, but pair it with a cheap, soft blade and you will spend more time fighting the cut than making progress. The blade is where the work actually happens — it is the interface between your tool's motor and the material you are trying to shape. A quality blade cuts faster, wanders less, lasts longer, and leaves a cleaner edge. Investing in professional-grade blades is not an optional upgrade; it is the difference between a tool that feels precise and capable and one that feels like it is struggling. Whether you are plunge-cutting into a floorboard, trimming a nail-embedded door frame, or slicing through stainless steel sheet, the right blade turns a frustrating slog into a clean, controlled cut — and a well-chosen multi-pack keeps you working through the day without constantly stopping to hunt for a fresh blade.
Generalities
Oscillating multi-tool blades come in a bewildering variety of shapes, sizes, materials, and mounting systems, and choosing the right one matters more than most users realise. The key factors are tooth material — high-speed steel for general wood and soft metal, bimetal for tougher applications, and carbide for the hardest materials like stainless steel and brick — along with the blade width, plunge depth, and the mounting standard. Bosch's Starlock system has become the dominant interface, and this 11-piece Professional set gives you ten general-purpose bimetal blades for everyday cutting plus one premium carbide-tipped Expert MultiMax blade for the hardest materials. It is a strategy that makes sense: keep a stock of affordable workhorse blades and save the expensive specialist blade for when you really need it.
This review examines the Bosch AIZ 32 APB bimetal blade's cutting performance across wood, metal, and plastic, the Expert MultiMax APIT carbide blade's capabilities on stainless steel and abrasive materials, the Curved-Tec rounded cutting edge design, the Starlock Snap-In mounting system, and whether this 10+1 pack represents good value for professional users compared to buying blades individually.
Description
This Bosch Professional blade set contains ten AIZ 32 APB bimetal blades and one Expert MultiMax AIZ 32 APIT carbide blade, all featuring the Starlock mounting system. The AIZ 32 APB is a 32-millimetre-wide plunge-cutting blade with a 40-millimetre plunge depth, built with high-speed steel teeth on a flexible bimetal body. It is designed for deep, precise plunge cuts in wood, metal — including non-ferrous metals, nails, screws, and small unhardened steel profiles — and plastics. The teeth are heat and wear-resistant, giving the blade a long service life even in abrasive materials.
The prize piece of the set is the single Expert MultiMax AIZ 32 APIT blade, which uses Bosch Carbide Technology. Carbide teeth are dramatically harder than high-speed steel, which means this blade can cut materials that would destroy a standard bimetal blade in seconds — stainless steel sheet, carbon fibre, brick, and fibre cement. The carbide teeth are arranged in Bosch's progressive toothing pattern and feature the Curved-Tec rounded cutting edge design, which promotes a clean start to the cut and reduces the blade catching or wandering when you first plunge into the material. An additional coating on the carbide teeth extends longevity even further, making this a blade you reserve for the toughest jobs where nothing else will work.
All eleven blades use the Starlock Snap-In mounting system, which is compatible with Starlock, Starlock Plus, and Starlock Max power tools — essentially every modern Bosch multi-tool — as well as most standard oscillating multi-tools from other brands when used with the appropriate adapter. The 3D interface of the Starlock mount creates a deeper, more secure connection between blade and tool than the older OIS friction-fit system, which means better power transfer from the motor to the cutting edge and less wobble during the cut. The Snap-In design allows blade changes in roughly three seconds without touching the hot or sharp cutting surface — a small feature that saves burnt fingertips and keeps your workflow moving.
The Curved-Tec rounded cutting edge, present on both blade types, is worth understanding. Traditional straight-edged multi-tool blades tend to catch and chatter at the start of a plunge cut because the entire flat edge hits the material at once. The Curved-Tec profile places the initial contact point at the centre of the blade tip, which gradually engages more teeth as you push deeper — resulting in a smoother, more controlled entry with less vibration and a cleaner finished edge. For professionals making visible cuts in finished surfaces, this design detail means less sanding and filling afterwards.
The set weighs just 0.28 kilograms for all eleven blades, making it a compact addition to a tool case or van rack. It holds a 4.6 out of 5 stars rating from 59 verified buyers and ranks number 3 in the Power Rotary Tool Blades sub-category — a strong position that reflects high satisfaction among users who depend on these blades for professional work. The blades are manufactured in Switzerland, a detail that speaks to the precision engineering Bosch Professional invests in its cutting accessories. At around €5.80 per bimetal blade plus the premium carbide blade included, the pack represents decent value compared to buying individual blades at typical trade-counter prices.
Pros and cons
Pros
- Ten bimetal AIZ 32 APB blades provide a solid working stock of general-purpose cutting blades — enough to keep a busy tradesperson supplied for weeks of regular use without running out.
- The included Expert MultiMax carbide blade cuts materials that destroy standard blades — stainless steel sheet, carbon fibre, brick, and fibre cement — giving you one specialist blade for the toughest jobs.
- Curved-Tec rounded cutting edge enables smooth, chatter-free plunge cuts — the blade enters the material gradually from the centre, reducing vibration and leaving a cleaner edge that needs less finishing work.
- Starlock Snap-In mounting allows blade changes in roughly three seconds without touching the cutting surface — no burnt fingers, no lost screws, and the 3D interface transfers power efficiently from tool to blade.
- 32-millimetre width and 40-millimetre plunge depth cover the most common multi-tool cutting tasks — deep enough to cut through floorboards, skirting, and joists in a single pass.
- Compatible with all Starlock, Starlock Plus, and Starlock Max tools as well as most standard oscillating multi-tools — you are not restricted to using these blades only with Bosch-branded tools.
- Swiss-manufactured with Bosch Professional quality control — the precision grinding and consistent tooth geometry mean predictable performance from blade to blade, not a lottery of good and bad ones in the pack.
Cons
- The ten bimetal blades are all the same 32-millimetre width — users who need variety (narrower blades for detail work, wider for fast cutting) will need to buy additional blade types separately.
- Only one carbide blade included — if you regularly cut stainless steel or abrasive materials, you will burn through the single Expert MultiMax quickly and need to buy replacements at a premium price.
- Bimetal blades, while durable, will not match the lifespan of carbide on abrasive materials — users who cut a lot of fibre cement, plasterboard, or brick will find the bimetal blades wear faster than expected.
- Starlock blades carry a price premium over older OIS-compatible blades — if your multi-tool accepts both standards, you may find equivalent OIS blades at a lower cost per unit for less demanding tasks.
- At around €64 for an 11-blade pack, the per-blade cost is only good value if you actually use all ten bimetal blades — occasional DIY users may find a smaller pack or individual blades more economical.
Use cases
The Bosch Professional 10× AIZ 32 APB + 1× Expert MultiMax blade set is a practical bulk pack for professional carpenters, kitchen fitters, and renovation contractors who go through multi-tool blades regularly and need a mix of everyday bimetal blades plus one premium carbide blade for stainless steel, carbon fibre, and other hard materials.
Daily Professional Trade Use with Predictable Blade Consumption
For carpenters, plumbers, and kitchen fitters who go through several multi-tool blades per week, this 10-pack of bimetal blades keeps your van stocked without constantly running to the supplier. The consistent Bosch quality means every blade performs the same way, and the single carbide blade is there for the day a stainless steel sink or carbon fibre panel needs cutting.
Renovation Plunge Cutting in Mixed Materials
Cut floorboards, trim door casings, and slice through plasterboard during a full-house renovation. The 40-millimetre plunge depth handles standard flooring and joist depths in one pass, and the Curved-Tec tip gives clean entry cuts that need less filling and sanding before the new flooring goes down.
Cutting Nail-Embedded Wood and Metal-Containing Materials
Trim old skirting boards and door frames that hide decades of embedded nails and screws. The bimetal teeth handle the combination of wood and metal without shattering, saving you from swapping between a wood blade and a metal blade mid-cut — a common scenario in period property renovations.
Stainless Steel and Sheet Metal Fabrication
The Expert MultiMax carbide blade tackles stainless steel sheet, thin plate, and even carbon fibre — materials that would instantly dull standard bimetal blades. For metal fabricators, HVAC installers, and anyone cutting ducting or cladding, this single blade justifies the pack on its own.
Workshop Stocking and Bulk Value Purchase
For shared workshops or multi-person crews where blades disappear faster than anyone admits, buying in an 11-pack keeps the tool cupboard stocked and reduces the per-blade cost compared to single purchases at the trade counter. The mix of ten workhorse blades and one specialist saves separate trips for different blade types.