Review on 💪 Precision Grinding with Chicago Pneumatic CP9121BR Grinder Spindle: Enhance Your Efficiency and Quality by Robert Hardin

I bought this to replace my Ingersoll Rand 3445 Air Angle Grinder. I am happy to announce that THIS IS DEFINITELY METAL. Most likely powder coated aluminum. (Of course I don't want to scratch it and see for myself.) This device has the solid construction I was looking for. I've noticed that elsewhere it looks exactly like it has the same grinder, same color, different brand and almost the same price, but sorry I forgot the exact brands. Note: If money is no object, you should also check out Ingersoll Rand. G2 series coffee grinders for ultra-industrial applications. The other competing product is the IR 3445. I had the first version of the IR 3445 (non-MAX version) and it broke within a year. (I use them to remove mill scale from mild steel.) While I'm a fan of infrared air tools, I'll never get a "composite construction" (read metal/plastic) air tool again. A fall and the case cracked at the junction of the aluminum and plastic, and IR does not sell plastic replacements separately. You need to buy a whole new suitcase, which costs at least $100. This one (CP9121) seems to be a bit louder than my previous grinder, but damn I always wear headphones anyway. I like to trade a small difference in noise for something permanent.