Tungsten Carbide Teeth Hole Saw (Hole Cutter) LU&MN Heavy Duty for Stainless Steel, 1 1/2'', 38mm

Doing a homemade thumb project for backhoe and needed something to make 1 inch holes in thick metal. Almost went with Annular cutters but needed to buy expensive drill also. Decided to try these and purchased 6 thinking they would only last a few holes. I am on the 6th hole including drilling through the weld seam twice and the first bit is still as sharp as it started after both 1/2" and 1/4" holes. The holes are perfect size for 1 inch pins and the project is going perfectly because of these. I am only using an old Wood Master as a drill press and couldn't be happier with the way these work. And now I have spares for future projects or friends that might need one.

Needed to punch a hole in 22ga S.S. sink for an extra faucet. As a journeyman machinist of 40+years, I didn't want to blow money on a tool I'd use once, but didn't want to blow a tool on a 1-time job either.Knowing carbide would do the job, but skeptical about such an inexpensive tool, I thought what the hell and ordered this.Cut the hole dry, no lube or coolant, and it went right through with very little effort. Hole size was good, minimal burr on the breakthrough side, and best part, the tool showed NO signs of wear! Still wonderfully sharp.I'll buy another size or this one again if I need to. Good tool..... It's cheaper than the name-brand H.S.S hole saws, and I think it works better. I've burned a few of them up in the past.

I used this to drill extra drain holes into the bottom of a hay feeder at the 4 corners. Worked better than I thought it would! Only took 5 minutes for 4 holes. That’s subtracting the time it took to keep tightening the drill bit with the Allen wrench they provide. It wanted to loosen while drilling. Otherwise I would have given this 5 stars. Great for the price !

This thing ate a hole through a stainless steel keg like it was cardboard, and left a nice, clean hole, not all burred or chewed up edges.

I used this the first time, on some thin gauge sheet metal (a Siemens electrical box).The tip of the pilot bit crumbled before it had gone 2 or 3 revolutions -- obviously defective.I replaced the bit with a 3/16", which is slightly small; and continued to bore several holes.In spite of the lousy pilot bit, I gave this three stars, because the cutter itself is actually pretty good.

Broke the bit before I even drilled the 1st hole, I had bought 2 and both broke before the hole saw had cut all the way through

I made some custom Christmas lights for my house- needed to cut 250+ holes in sheet metal. I was worried after reading the other reviews... BUT NOPE! This handled it like a champ! Never broke, super sharp still, never dulled. READ THE INSTRUCTIONS for the proper RPM! I used a drill press in the correct RPM settings, NO OIL or LUBRICATION, drilled slowly. It took me nearly 12 hours, but dang- NOT ONE PROBLEM! Will definitely buy again.

I needed to drill through stainless steel kitchen equipment (SS sheet metal on a wok range) and it did so in minutes! I used dishwashing soap to lubricate and went at it with good pressure and slow speed.My project was to install a piezo spark lighter to conveniently and safely light the pilot on a hard-to-reach wok range.Highly recommended for kitchen use!

The product is what is described and off good quality

The pilot bit broke while cutting the third hole but it wasn't too big of a deal since it could be easily removed with the included allen key and replaced with a higher quality one that I already had in the shop so I had no problem to keep going with my project. I could see someone without any other drill bits kicking around being upset about this though as it would mean a trip to the hardware store for an additional purchase. I cut 13 holes in total through a pretty thick steel enclosure box and it was starting to get a bit dull at the end but it got all the holes I needed cut. It also cut the perfect size holes for my brewing control panels lights, switches and power cable. I only took a star away for the cheap pilot bit that broke but otherwise a great purchase!

Bought this to drill half inch holes in electrical panels. Works fantastic on low speed with cutting oil. Hopefully it will continue to work well especially for this price I think it’s a great deal.

The first one is what is described in the detail page. The second one is what is delivred. Both are not of the same quality.

Drilled hole in metal panel on boat