409 36-Piece Rotary Tool Cutting Accessories | For use with rotary tools that fit 1/8" shank size, Cut-Off Wheels, Ideal for Cutting Bolts and Screws

These cutting wheels are cheap and perform superbly when used as advised. ([...]) I currently use these to cut aluminum alloy metal ferrules as well as certain plastics, such as those that make up ice coolers. I've broken cutting wheels because I've gone against these tips. With any high-powered tools, caution and scrutiny are always a necessity, especially for obtaining high performance. I've copied the 'Tips' section for those who decide not to follow the link. Pros: - Does exactly the following: Ideal for cutting, grooving and trimming all kinds of metal. May also be used on other materials-including thin wood, plastics and ceramics. Cut-off wheels make it easy to cut bolts or screws or make slots in rusted or stripped bolts and screws for removal with a screwdriver. -Cheap Cons: -Fragile and can easily break when not used as advised. User Tips The cut-off wheel cuts only along its edge. Do not attempt to sand or cut curved holes with them. (I do this, but very carefully. Not recommended bc they do break if not carefully applied!) Secure objects to a stable surface while working. Hold the tool so that the wheel is at a perpendicular angle to the material being cut. Keep a light touch, as the wheel will break under too much pressure. If chattering occurs, increase speed. Plastics require very slow speeds, because they tend to melt at the contact point. Wood requires low speeds also, always experiment on a scrap first.

These can be expensive and also hard to find. I looked in lots of stores as my supply depleted. These reinforced cut-off wheels are basically an inch in diameter and very thin which is beneficial in some situations and I like using them despite the fact they can break easily. The other cut-off wheels which are designed for use with an easy release mandrill are larger diameter and thicker. They come in handy as well, but are too big for some projects.

I had previously been using Dedeco cut off wheels and was satisfied with the quality however they were much more expensive than the Dremel. I read a bunch of reviews here that these cut-off wheels would easily crumble and fall apart. I decided to give them a try. Here are my results: 1) Just like the Dedeco they are brittle and you must handle them with care especially not to bump side to side 2) Don't over tighten the screw in the collet or you'll damage the wheel and it will more easily break 3) Use a steady hand(s) when cutting and avoid any side to side movement. Either wheel (Dedeco or Dremel) will break pretty easy if it receives side pressure 4) I used the Dremel to cut through heavy duty staples (3/16"). I was able to cut through about 8 staples before having to replace (I had to cut dozens and the results were pretty much consistent). I thought that was pretty impressive. It was also 20 degrees outside. I even had a few wheels grab the stable a bit and they still did not break but any sideways movement they would usually fall apart soon. 5) I also used these to cut through an M6 (metric - 6 mm or .24") stainless steel bolt. Stainless is really tough but I was able to cut through the bolt with just one cut off wheel (just barely one). Bottom line - if you hold steady (preferable two hands on the tool), avoid side to side motion, let the wheel do the cutting, don't exert too much pressure, and don't over tighten the collet screw these should work just fine for most small cutting operations. I only cut steel... not sure how it will perform with soft substances such as plastic etc. Soft substances could cause heating and gum up.

These are the thinnest rotary tool cutoff discs I could find. They work well! But be sure to wear eye protection. Push them too hard and they will break, sending pieces of the disc flying across the room.

Great replacement when I used all of the ones that came with my Dremel

Absolutely perfect for a dremel tool. One disc already paid for the purchase of “36” in the little container and it’s still not broken. When You use these discs don’t force them they’ll fly to pieces. Let the disc cut slowly. They work and will cut steel bolts if you’re patient Hope this helps, well worth the price.

Have used these many times. They tend to shatter sometimes so take it easy using them, let the tool do the work. Very pleased as well as a great price on these.

I used these to cut the rusted exhaust studs on a 20-year-old BMW. They cut fine, but they are very brittle, meaning any slips or unintended movements cause the disc to fly into (harmless) pieces, which led to numerous interruptions in the process. They're not expensive to buy, but having to stop, change the discs, and restart is hugely inconvenient. Next time I will look around at other options. The Dremel cutoff disc that came with the tool when I bought it was much more forgiving and I only had to replace it because I had ground it down from use. I guess I'll have to figure out what that part number is (it's definitely not these!). Would not buy these again for my use cases (cutting bolts/studs on a car).

カーボンの板やパイプを切る時に重宝しています。 減りは早いですが切れ味は最高に良いです。

Ótimo produto

Another great product from Dremel, be aware that these discs are very thin and a little delicate, so well suited for small slow work...

Used these to cut out rusty fender seams from a 60 year old car. I thought I would use most of the 30 but they did the job really well and lasted.

yes they were what i expected , i just had no idea that they were coming from Japan but the service was superb