Review on 🪚 Bosch HC8536 4-Inch 22-Inch Hydraulic Concrete Cutter by Daniel Oliver

I work in radon abatement so I punch cores through concrete slabs every day. I've been using these 4 inch Bosh crowns for a number of years and really like them. They have always been strong and reliable. Hammer causes problems. On first use after purchase, the clean pin holding the pilot's cap broke off. This is to be expected after repeated use. Not after the first few minutes of use. I've used this attachment a total of 4 times and he's probably already missing half his teeth. I have never hit rebar or solid concrete with this drill bit. Each job was standard for 3-6 inches of concrete. I do not know what's up. Yes, but I'm not happy. I may have just gotten a broken one, but for the price of these bits you would expect them to last more than a few jobs. When I bought these crowns a few years ago they lasted at least 2-3 months of constant daily use before I noticed my teeth were wearing down. Seems like I'll be looking for another high quality brand. Times are tough and I can't afford to spend hundreds of dollars every few weeks on a tool that should last months.