IDEAL Electrical 36-305 TKO Carbide Tipped Hole Cutter, 1-3/8 in. Hole Diameter

Good price great product

I used this to cut 28 holes into 1/8” thick diamond plate steel. Raw, not chromed. I used no oil or lubricant. And I cut all 28 holes continuously with no break or cooling off period. I did this on purpose due to the negative reviews on its performance. The drill bit is still sharp, the teeth of the saw are still sharp. There is no bluing or warping of any of the hole saw. This thing is an absolute beast!

Nothing better!

Used this about 40 days and the pilot bit fell out and was lost. Ordered a new pilot (note that the set screw is metric Allan) and about 15 days later I noticed one of the carbide teeth has broken off. I have made probably 100 holes and continue to do so. Now holes are slower and not quite as clean as when I had all its teeth. I drill furnace cabinets and disconnects using a high speed impact driver. (This but has 3/8" shaft so I bought a 1/4" adapter chuck to fit the adapter)(my guess is the impact action is what broke the tooth out)

These things are beasts. 2000+ holes and still going strong. Don't be a dummy and follow the instructions and they will last longer than advertised

I needed to cut smooth holes through my metal shop building to run different sizes of conduit from the outside into the building. This kit had the right size hole cutters and performed flawlessly. I was able to cut through 1/4" thick I'beams effortlessly and the finished holes needed little file work. I don't think you can go wrong ordering this product. I ordered it when I observed an electrician using it and have not regretted my decision.

I’ve been using this tool for 15 years I do about 3 to 5000 holes a year with one New tool each year

I own the 3 most common sizes and have drilled a few hundred holes sofar with the 1 1/8 one especially. Only had to replace the pilot bit and still going strong. I strongly recommend buying these if you got to drill a lot of holes. Just remember let it do it's thing and don't force it and they last forever