i recently had to upgrade my drilling equipment for my industrial and scientific job and I came across this rotary drill bit. Through trial and error, I found that this product was the perfect solution for my heavy-duty drilling needs. The bit effortlessly cut through EVEN the toughest materials, and the overall build quality was impressive... The only downside was the slightly higher price compared to other options, but the performance more than makes up for it. Highly recommend for any professional in need of a reliable and powerful rotary drill bit..