The Speed Click System from Dremel is a fraudulent scam. Setting up a tool on the spine - for example, a cut-off wheel for metal or plastic - takes about three times as long and twice as cumbersome as the clamping a finished liner (disc plus mandrel) in the Region or chuck of the power tool. The effect is that as many mandrels you buy, as you tool types.
I have half a dozen mandrels for cutting discs of various types and grinding wheels. This has 70, me - tasted. One recognizes the commonality between Dremel and inkjet printers: the device is quite a gift, totally overpriced accessories.
If the system would consistently, one could still argue that a normal person to At length three mandrels and that's it. But countless missions come with their own thorns: a piece of nickel-plated steel rod 3.2mm and a tiny screw above material value 0.36. So why not everywhere?
Because so a good source of money fell away.