I already had an angle grinder air tool, but when my pancake air compressor died (and only my shop compressor was left) I really had no choice when I needed to cut through a few stubborn post lamps. My biggest skepticism was that decent torque and speed require power, which is the main downside of battery powered tools. But. I already had a few Ryobi 18V tools, so thought it would be worth getting the Ryobi P423 18V One+ Brushless 4-1/2" 10,400 RPM Brushless Grinder and Metal Cutter with 3-position adjustable side handle and built-in Wrenches to try Tool supplied with cutting and grinding wheel Wrench in handle and spindle lock Easy to use for fitting and removing wheels Overall the tool is larger than an air tool but makes sense considering you have a battery and a motor on Have on board. As for using the tool, it was surprisingly good. You have to work a little slower than with an air torch, but it's fine. If you put up too much resistance, the tool shuts off. It's not, but it is very important as it comes ready to use.The handle has multiple positions but I would have liked to have had a few more taps to make grinding easier . I wasn't sure how much I would need a cordless sander. , but my to-do list is growing fast thanks to my newfound mobility. g is missing, I would like a nylon carrying case. recommended