Intro
Owning an oscillating multi-tool is only half the equation — the other half is keeping it fed with the right blades and accessories for every job that comes along. A single genuine-brand blade can cost anywhere from eight to twenty euros, and if you are switching between cutting wood, slicing through metal, sanding into corners, scraping adhesive, and removing grout, you can burn through fifty euros worth of consumables in a single weekend project. That is why third-party accessory kits have become so popular: they bundle dozens of blades, sanding sheets, sanding pads, and scrapers into a single affordable package, turning your multi-tool from a one-trick pony into a genuinely versatile workhorse. Whether you are a weekend renovator tackling every room in the house or a professional who treats blades as disposable consumables, having a deep stock of accessories on hand means you never have to pause a job to run to the hardware shop for a single replacement blade.
Generalities
When you are shopping for a universal oscillating tool accessory kit, the three things to check are compatibility with your specific tool, the range of blade types included, and the balance between quantity and quality. CONNOO's 156-piece set targets users of standard universal-fit multi-tools — the classic open-backed mounting pattern used by older Fein Multimaster models, Milwaukee, Ryobi, Rockwell, and most generic tools — while explicitly excluding the newer Starlock, Starlock Plus, and Supercut systems. If your tool has a tool-free lever clamp rather than a bolt-on system, double-check compatibility before buying.
This review covers what you actually get in the 156-piece kit, which blade types are included and what they are good for, how the sanding accessories perform, and whether the value stacks up against buying individual branded blades. We also highlight the compatibility limitations so you know before you order whether this kit will fit your specific multi-tool.
Description
The CONNOO 156-piece oscillating tool accessory kit is a universal-fit set designed to work with most standard multi-tools that use the traditional open-backed blade mounting system. The kit is compatible with Fein Multimaster (non-Starlock versions), Milwaukee, Ryobi, Hitachi, Black & Decker, Chicago, Craftsman, Bosch (non-Starlock), Dremel (select models), Makita (non-Starlock), Rockwell, and Rigid tools. It is explicitly not compatible with Fein Starlock, Bosch Starlock, Makita Starlock (DTM52), Fein Supercut, Dremel MM40 and MM45, Dremel Multi Max 6300, and Bosch MX30. Rockwell and Worx tools require the included C-clip adaptors except for Hyperlock models. The kit ships in a compact package measuring 17.8 by 13 by 7.9 centimetres and weighing 1.03 kilograms.
The blade selection covers the core multi-tool tasks well. You get five standard 45-millimetre saw blades for wood and plastic, three precision 45-millimetre blades for finer cuts, two ARC-edge saw blades with a curved tooth pattern for faster cutting, and five additional 45-millimetre wood-and-plastic blades — so there is no shortage of general-purpose cutting blades. For tougher materials, the kit includes three 45-millimetre universal bimetal blades rated for wood with embedded nails and light metal cutting, plus a set of three more bimetal blades. Smaller plunge-cutting tasks are handled by three 90-millimetre wood-and-plastic blades, two 19-millimetre fine blades, two 10-millimetre narrow blades, and two 13-millimetre blades for precise trim work. Two stainless steel saw blades round out the metal-cutting capability.
A full sanding system comes bundled in the kit — one small sanding pad measuring approximately 60 by 60 millimetres, plus a comprehensive set of sanding sheets. You get triangular sandpaper in grits from 60 (coarse) through 80, 120, 180, 240, and 320 (fine), with five sheets of each grit — 30 triangular sheets in total. Additionally, the kit includes 60 small sanding sheets across the same six grit grades, giving you five sheets per grit for fine detail sanding. This means you can tackle everything from aggressive paint stripping (60 grit) to delicate surface preparation before varnishing (320 grit) without buying separate sanding consumables.
Four C-clip adaptors are included to extend compatibility to Rockwell and Worx tools that use a slightly different mounting pattern. These are small metal clips that bridge the gap between the universal open-back blade design and the specific clamping mechanism on those brands. The adaptors are simple to fit — slide one onto the mounting post before attaching the blade — and they stay in place during use. Beyond the blades and sanding gear, the kit also covers scraping and grout removal tasks, though the description focuses primarily on the cutting and sanding components. At 156 pieces total, this is a deep kit that should keep a regular multi-tool user supplied for months of intermittent DIY work.
The CONNOO kit holds a 4.3 out of 5 stars rating from 76 customer reviews on Amazon France, ranking at number 214 in the Oscillating Tool Accessories sub-category. It was first listed in May 2025, making it a relatively new entrant to the market. At around 43 euros for 156 pieces, the per-piece cost works out to approximately 28 euro cents — dramatically cheaper than buying individual branded blades at 8 to 20 euros each. For DIY users who go through blades regularly and do not require the absolute cutting speed of premium branded bi-metal or carbide blades, the value proposition is hard to argue with.
Pros and cons
Pros
- At approximately 28 euro cents per piece across 156 accessories, the kit offers extraordinary value compared to buying individual branded blades at 8 to 20 euros each — you can afford to treat blades as consumables and swap them the moment they dull.
- The blade variety covers every major multi-tool task — wide wood cutting, precision plunge cuts, bimetal blades for nail-embedded timber and metal, narrow trim blades, and stainless steel blades for ferrous metals.
- The sanding kit is genuinely comprehensive — 30 triangular sheets and 60 small sheets across six grit grades from 60 to 320, plus a sanding pad, giving you a full sanding system without buying anything extra.
- Four C-clip adaptors are included to extend compatibility to Rockwell and Worx tools, saving you from buying separate adaptor kits that can cost 10 to 15 euros on their own.
- The universal open-back mounting pattern fits the vast majority of non-Starlock multi-tools from Fein, Milwaukee, Ryobi, Bosch, Dremel, Makita, and others — one kit can serve multiple tools across different brands.
- The compact 1.03-kilogram package with organised compartments makes it easy to store in a tool bag or van drawer, keeping blades sorted by type rather than jumbled together in a box.
Cons
- The kit is explicitly not compatible with Starlock, Starlock Plus, or Supercut tool systems — if your multi-tool uses the newer tool-free lever clamp interface from Bosch, Fein, or Makita, none of these blades will fit.
- Third-party blades generally use thinner steel and less durable bimetal construction than premium branded blades — expect faster wear on heavy-duty tasks like cutting through multiple nails or thick-gauge steel.
- The sanding sheets use a generic hook-and-loop backing that may not match the hole pattern of your specific dust extraction pad — if clean sanding with vacuum attachment matters to you, branded sanding sheets may fit better.
- With only 76 reviews at the time of writing, long-term durability data is limited — the blades may perform well on the first few cuts but how they hold up after dozens of uses is less documented than established brands.
- The kit does not include a rigid scraper blade or a carbide-grit grout removal blade — for adhesive scraping and tile grout work, you will need to buy those accessories separately.
Use cases
The CONNOO 156-piece kit is ideal for DIY renovators, hobbyist woodworkers, and budget-conscious multi-tool owners who need a deep stock of cutting blades and sanding consumables compatible with standard universal-fit oscillating tools — not Starlock systems.
Whole-House DIY Renovation
If you are renovating multiple rooms — cutting out sections of floorboard, trimming door frames for new carpet, sanding window sills, and scraping old caulk — this kit gives you enough blades and sanding sheets to move from room to room without stopping to restock. The variety of blade sizes means you always have the right width for the cut at hand.
Budget-Conscious First-Time Multi-Tool Owners
When you have just bought your first oscillating multi-tool and the single included blade is already dull, spending 40 euros on a 156-piece kit instead of 20 euros on one branded replacement blade is an easy decision. The kit removes the anxiety of wasting expensive blades while you learn the tool, and the sanding accessories add capability your tool did not have out of the box.
Hobby Woodworking and Model Building
Precision plunge cuts in plywood, trimming dowels flush, detail sanding on small projects — the narrow 10-millimetre and 13-millimetre blades combined with the fine-grit sanding sheets make this kit useful for furniture making, model building, and craft work where branded blades would be overkill.
Landlord and Property Maintenance
Managing multiple rental properties means constant small repairs — trimming a sticking door, sanding a patch of wall before repainting, cutting out a section of swollen laminate. A 156-piece kit in the maintenance cupboard means you always have a sharp blade ready, and the low per-piece cost makes it painless to replace blades frequently.
Supplementing a Branded Blade Collection
Even professionals who use premium blades for demanding cuts can benefit from a cheap bulk kit for the throwaway tasks — cutting plastic pipe, trimming softwood, rough sanding before finishing with a branded pad. Using the CONNOO blades for low-stakes work preserves expensive bimetal and carbide blades for the jobs that actually need them.