M2 HSS Quick Change 1/8" - 1/2" Step Drill Bit Double Fluted Drill Bits for Hole Drilling in Stainless Steel, Copper, Aluminum, Wood, Plastic

Got a new padlock for an old shed and the shackle was a couple of millimeters larger than the holes in the hasp. If you've ever tried to slightly widen a hole in steel with a larger drill bit, you'll know what a nightmare it is. This bit was one of the few affordable step-bits that advertised that it would cut through steel. Most of the other less expensive ones only mentioned aluminum and copper metals.Long story short, it worked to perfection. Glided into the hole and I could easily see just how much I was widening it. Didn't seem to wear or dull the bit at all. This will be one of my most used tools from now on.

I was very surprised at how long this step drill bit lasts and stays sharp. Went through 3 or 4 of the big box hardware store bits before getting this bit. The bit did 75% of the remaining drilling and was still usable once all the holes were drilled.

The bit works as intended!

Worked very well for my application of widening holes in thin stainless. Not sure if it will stay sharp - but I don’t have much experience with other tools like this. It seemed to weaken a little after 4 holes. But solid and of high quality.

I used this ti drill out a lock on a steel safe.This bit was perfect for the job and cut through quite nicely. A++++++

These bits cut through steel like butter 1/4” diamond plate no problem

So far have only used one of the bits but the performance was outstanding. The bits are very sharp and appear to be well made. The bit cut through the steel sheet metal like it was made of wood. I am pleased with the purchase.

This was exactly what I needed. Cuts fast.