Review on 🔪 HSS Saw Blade, PROMMON 5-Piece Ti-Coated Rotary Tool Saw Blades Set & 5-Piece Stainless Steel Wood Cutting Wheel Discs Set & 2-Piece 3mm Twist Drill Bit Set for Rotary Tools (Pack of 12-Pieces) by Riley Skeet

Just what I needed to complete my set of high speed rotary tools. The main components of this set are 5 bronze blades and a large spindle. This kit consists of fine German made parts that are precision engineered and extremely durable. Hard enough to use on soft metals like aluminum or copper, if only used on plastic or wood it will last for years. Other parts, smaller silver blades, two side wound drills and two smaller spindles are packed separately. Silver colored saw blades are much thinner, with much finer teeth, ONLY for wood or plastic and for precise cuts. The side winder bits are hardened steel (no "twist" bits as advertised), which is a good thing. They last much longer and are used for plunge cutting and milling. This whole set can be used in any high speed rotary tool (e.g. Dremel). I highly recommend this knife set. I had to deduct three stars because the Dremel keyless chuck is NOT usable. It was coupled so tightly that it could not be detached or attached to a rotating instrument. I know this is not typical of Dremel branded equipment. So this one was just defective. But it's a big pain for such a small part. Not worth putting up with the seller, Revain or anyone else. So throw it away and order a new one. Just not from this provider.