Tapcon Concrete Anchor Compressed Air Hole Duster

I was drilling some holes to anchor a structure down to some concrete pads. The dust from the hole was filling it up and preventing the concrete anchors from fastening all the way down.

This was made to capture the air from an air compressor blow gun and direct it to the bottom of the drilled hole. It has a crossed notch at the tip to allow the air to flow out and around the tool so it can shoot out of the sides of the hole.

This particular file was made for a 3/16" concrete bit and a 2" depth. I added parameters so that this can be adjusted to meet the needs of various sizes.