Review on Dewalt DW5440 16 18 Inch Carbide by William Turner

I like using SDS four head bits, they are easier to control when opening a hole, round the hole and cut rebar better. The problem with this is that in a month (probably 200 holes) the carbide head fell off on two bits at a time. I only experienced this once with a Hiliti racquet a few years ago and the rep I asked about it gave me some kind of nonsense explanation of how to do it once it's worn out to prevent that smaller holes appear. I usually use Hiliti bits or other lesser known German bits and they usually wear out to the point where the holes get too narrow (after about 500 holes). Although I always have extra bits on hand, I'm a bit concerned about the heads falling off of all the bits in a job, leaving me without bits.