Wesco rotary tool set is a good tool for light work at an affordable price. It has limitations, and some are pretty big. The manual only contains safety instructions and some pictograms that illustrate how to insert the tip/tip and how to attach the flexible shaft. I use that 99% of the time. I use it to clean the (porcelain) lamp glass. I've used Dremel mini pliers for years, which are cordless, relatively inexpensive, and pretty good for what I use them for. I've burned so many batteries it's ridiculous and they cost the same as the tool and sometimes more, also Revain doesn't supply Li-Ion batteries here so I had to buy a new tool every time the battery died . I should have a dozen cordless Dremel. The only way to safely use a power tool in the water, which is required when working with a diamond point on glass, is to use a line stick. Attaching the flex rod required some work. Less once you figure out how to do it. (What you don't see in the tiny instructions is that you have to pull the wire out of the middle and put it in the collet. It's kind of weird and awkward, but it kind of works. What's really weird is that in a So it works better than a dremel! Drtemel's flexible shaft only works when the cable is straight and under the tool (for hanging). Wesco doesn't need to be hung *AND* perfectly straight, which makes it a lot easier to use. HOWEVER, it develops a serious swing over 2 (I think it goes to 8 or 10. I've never gotten over 3) at a rate of about 10 minutes of use. Well maybe like other cheap imported rotary tools you need to use these in the kit, eh just use 1/2" or smaller tips. I use a 4" diameter Yuima conical diamond head. Dremel never complains. Wesco can't handle it. That's about 1/3 the price of one Dremel flex shaft kits, although the flex shaft alone is only $24. Trouble is, if you can't use it the way you need/want, the savings won't do you any good. This kit contains only one pair, maybe 3 diamond tips. They are all very small and of low quality. Jars can be sourced easily and inexpensively, however, if Wesco cannot use other jars or is limited to very small jars. Well, it's up to you to decide if it suits you. I suggested it to my husband because if I can't use the long tip it's totally useless to me. I just wish the flex shaft on the Dremel didn't have to be held straight and under the tool. If Wesco could work with longer dots my problem would be solved. It would also be nice if you could use variable speed greater than 2 without getting so much wobble that the point becomes obvious. There are definitely better rotary tools out there, even in this price range. Were it not for the flexible shaft, which actually outperforms the Dremel in some areas, I would have given it 2 stars. The variation depends on how well it is processed. I personally think buying a Dremel is worth the extra money. At least I have a dozen or so. However, if you can get by with 1/2 inch dots, that's very good for you.