Description of π§ DEWALT D1800IR5 β 4 Inch 5-Piece Impact Set
The hole saw kit has an optimized tooth design for Fast Metal Drilling Speeds. Hole saw set has an ejection spring for easy plug removal. Raised Shoulder helps to prevent the drill from breaking through the material when hole is complete. Thin walled design provides optimum metal drilling efficiency.
For an electrician this is a good set for light gauge steel bolts. It is in no way comparable to the carbide set I would recommend for knocking out bezels and large junction boxes. But for the price they will definitely handle your lighter materials.
This five piece set was perfect for me. I wanted to drill some holes in thin steel and found that they would cut much faster than I expected. They cut holes with smooth edges and a pilot bit held them in place so they didn't wobble as you cut. A good thing.
They go through metal like a knife through butter. I've drilled 30 different hole sizes and these things still cut like new. The cutting blade is very thin; This traps heat, removes less material, and increases service life. The spring in the middle pushes the waste out.