Description of π οΈ DEWALT DW5236 2-Inch by 12-Inch Carbide Bit
ROCK CARBIDE tip maximizes carbide surface contact for longer bit life. Four flute design cleans debris out for fast, efficient drilling. Three flats on shank eliminate bit slipping in chuck.
This is my second drill. The first was enough for many, many holes. It cuts faster than Bosch bits and others that use a more typical bit profile. Let the beat slice at its own pace (which is pretty fast) and don't let it overheat and it will surprise you. Update: This doesn't look like my first bit, firstly no SDS, secondly horrible carbide. I entered the concrete 2 inches, the tip was almost worn out. I used a Dewalt puncher. I now have a nice piece of spiral flute steel to use as part of anβ¦
When I finally got to my project I noticed the package was sealed with tape. Using a hammer drill, all I had to do was drill a hole in a 9-inch concrete wall poured in 1976 with this new bit. But it was "made" in 3 inches. I didn't hit any rebar or metal along the way. Not sure if it's been used before or if it's horrible quality, but it was horrible nonetheless. Used it as a chisel to do the rest. Take it out of the drill bit and hit it with a 3 pound hammer to break up the concrete a bitβ¦
Sure thought it would work. I'm just trying to drill a 1/2" hole in my basement floor for an RF ground rod. EZZ, right? I first tried the star chisel I've used before and was very lucky. Tap-tap-tap. I bent the thing. sent back. Tried this tact. I'm 4" and it just won't go any deeper. With a good quality masonry drill bit, I've used the smaller cobalt blue bits before to good effect, but this thing just won't drill any further into the concrete. The house was built in 1971, I don't have any Any