Bests & Worsts Reviews from Amazon

My previous Dremel lasted 23 years (only broke BCS I bent the shaft dropping it). While this beautiful kit was hugely expensive for me, if it lasts as long it'll come out to less than $1/month. To add to the life of your Dremel & make project prep easier: * BEFORE USE: run Dremel at high speed for five minutes & flex shaft with tool raised above flex shaft for two minutes. Add a label to your stone collection to remind yourself to run each stone for 1 min. *MAINTENANCE: Blowout with compressed air. Fold a long piece of masking tape in half over the Dremel's cord & mark off each hour of use. When you get to 40-50 it's time to check the brushes. Add another strip of masking tape to the flex shaft to mark off each hour of use. When you get to 35-40 relube with $5 add-on Lucas ball bearing grease. *USING CORRECT SPEED: Go online and print out Dremel's chart showing the speed for each accessory and project material. To make it fit in your case you'll need to trim the paper width before laminating & adding a keychain ring so nothing gets lost. * ORGANIZING ACCESSORIES: If you already have multiuse accessory kits/accumulated loose bits then you might find it easier to store everything in your Dremel case by cutting away excess foam in the back of the bottom drawer to fit in relabeled prescription bottles that gather together like bits. For ex, one labeled "STONES run 1 min before use" followed by the numbers for all accessories in that bottle. Add a masking tape tag to each accessory with it's number. I'm using the accessory organizers that came with the case for collets, tools, brushes, sanders & big wheels. Im only giving 4 stars now because I haven't tried out everything yet. Hope find this helpful! UPDATE: my flex shaft was defective and fell apart the second time I used it, unfortunately, after my one month return window. I called Dremel & they are sending me a replacement free of charge.