Although I do most of my angle grinders with a 7 inch grinder, I also do quite a bit of work with a "small" angle grinder. I bought this to replace a Milwaukee 4 1/2" angle grinder. This grinder has noticeably more power, is more comfortable to use, and one feature I really like is the use of a large allen wrench to tighten/loosen the lug nut .Most other grinders require you to use a wrench AND a shank wrench.This grinder has a spindle lock knob and a hex wrench (included) for tightening/loosening the lug nut.This is a very easy and convenient solution to the problem of having two different wrenches to use for changing wheels/rims The only downside I see so far is that there is a safety 'lock' on the blade on/off switch (if you use an angle grinder a lot, never buy one with slide switches, they either wear out quickly), or jamming due to grinding dust after a short time), which is cumbersome with gloves ch/ is difficult to handle and tends to "stick" when soiled by swarf/dust. I will most likely delete it. it is held by a simple "scroll". This grinder has a 3 year guarantee. we'll see how that plays out. I use grinders every day and probably put in more work in a year than most people do in their lifetime.