Hilti TE 2-S Rotary Hammer Drill Set with Case - 120V Corded Electric Demolition Hammer for Concrete, Brick & Masonry - Perfect for Construction, Renovation & DIY Projects

I had a Harbor Freight hammer drill, then I thought I upgraded to a Milwaukee Hammer Drill. Both are crap, in fact the Milwaukee was worse, because it was 4 times the price. I needed to drill 36 3/8" holes in a harden concrete floor the first three took twenty min each. The chuck kept coming loose.... bla bla bla. In a moment of rage and weakness I bought the Hilti.... I did 33 holes in 40 min. Outstanding machine!!! The drill bit that came with it (One of three 1/4, 3/8th, and something else) still looks brand new. It's expensive, but it drills concrete like your drilling pine - effortlessly!!! I'm dumping my Milwaukee stuff (over time) for Hilti and Makita! I should say, that the act of drilling concrete, you just support the drill, light pressure and go. Highly recommend!!