ASNOMY Tungsten Carbide Tipped Hole Saw Drill Bit for Hard Metal, 4 Inch T.C.T Hole Saw Cutter with 2pcs Titanium-Plated Pilot Drill bit for Metal, Stainless Steel, Iron, Wood, Plastic

do the job without problem, it is robust and very strong, it is not too heavy, the cut is perfect so it is a nice investment.

Nice durable, sharp tool. Cut 3/8 mild steel quite easily. Resulting hole size was correct and of machine quality. I used a drill press. If used with appropriate rotation speed, and with cutting oil, should last a long time.

Works great on 1/8 aluminum nice and clean cut out.

Cut 4 1" holes in 3/8" mild steel. Still sharp. Once the teeth get below the surface of what you are cutting, chip clearing becomes an issue. Keep clearing it, and keep it well oiled as you are cutting. One of the 2 center drill bits that came with it was bent right out of the box, so I'm taking a star for that.

Cut perfect holes in my computer case for 2 120mm fans to cool the hard drives. Cuts smoothly if you are careful and is far better than the bi-metal blades I had used in the past, which tended to wander, got hot(burned the paint), and took a long time to cut

Works fantastic went through 1/4 plate steel like butter

I drilled six holes in 3/8 inch plate effortlessly with a mag drill. The only thing that needs to be improved is the shaft on the bit could be a bit beefier because the mag drill I used twisted the shaft off of the bit. I had to grind three flat flutes on the base of the bit in order for the drill Chuck to grab it.

I used the Hole Saw Drill Bit for a DIY project to drill a hole for the water filtration system in my steel sink. It worked pretty well and made clean cuts, but I had a bit of trouble keeping it steady at first since it kept moving around. Once I got the hang of it, though, it cut through the metal just fine.