🛠️ COMOWARE Step Drill Bit Set & Automatic Center Punch Toolkit: Unibit, Titanium Coated, Double Cutting Blades - 5pc Short Length Drill Bits with Aluminum Case - 50 Sizes in High Speed Steel Review

This is NOT very good. For the price I should have known. I upgraded my microbrewery tanks and the first 2 tanks (stainless steel) cut through fine, but I spent 3 hours cutting the final hole in tank #3. After the first refueling, he lost the edge and only heated the stainless steel and bit. By repeatedly drilling, chilling, hammering and repeating, I made the 3rd hole. It's so cheap I just throw it away and don't think twice about it. If you want to add something to your toolbox look…

I don't use step drills or anything like that very often - I only use them occasionally for various metalworking projects. But I've had them for a while now and they continue to work great, which is pretty cool considering I mainly use them for body panels. For the price, I really expected them to only be used a couple of times before becoming unusable, but so far I haven't had a single issue or reason to replace them. They remain sharp, manageable and pleasant to use. Makes me regret all the…

i have a squat and exercise rack. It has pins for weights. However, the pins are spaced vertically, so you can't place both Olympic-size weights on them at the same time. My solution was to move the top pin up a few inches by drilling a hole in the metal frame. None of my regular drill bits could make a 1 inch hole. The thing worked quickly and easily. I was able to determine the entire size required by placing this drill bit in the original hole and seeing what "pitch" I needed to drill. I…

I found expanding a smaller hole to a larger one to be so tedious. Step drills simply make the job easier without clogging the hole. Now mine are pretty new and I've only used them 3 times so I don't know if they will hold up yet. The description says "titanized" but there's really no way of knowing for sure. First I drilled a stainless steel disc with the correct outside diameter, but I needed a larger hole. Cut out easily. Took off the gold "titanium" coating on the step to the larger hole…

If you know drill materials and metal hardness then this set is suitable for home use. and aluminum (not an alloy). For the home user, this set is fine as it probably won't be used intensively or in a production environment. Other than that it's fine and worth the asking price if you treat it with respect. Respect = Keep them in their original packaging, do not use them to cut high carbon steel such as stainless steel or hardened steel such as bed frames/spring steel. The bottom line is that…