I'm a CNC milling machine operator and bought these from a shop for industrial use. In the last two weeks I've deburred about 500 feet of edges on 303 stainless steel plates, all with my first blade in the set, which is fairly dull now but still cuts with power. They last about 3 times longer in the same reel compared to Royal brand cutting tools purchased from our local industrial tool supplier. Note that these blades are larger and thicker than regular blades and won't fit in the standard holders that most machine shops use, but that can also be a good thing because your co-workers won't steal yours. The knurled handle has just enough texture to be moderately grippy when wearing coolant-lubricated nitrile gloves, but not too sharp to pierce thin gloves. I have large hands that will fit oversized gloves and I find the grip a bit narrow and short for maximum comfort (which would be similar to a Stanley Fatmax to me), but it's certainly serviceable and better than the pen-shaped grip. like most of these instruments I own. This is a cheap and good purchase for industrial use. If you're reading this, you already know this is the right buy.