I have some new fragramatics vacuums I need to drill a half inch hole through for the electrical connection. Last time I used my vari bit but it ruins the bit. Anyone know of a better way to drill a half inch hole through the vacuum?
I also use step bits in stainless for larger holes. The Harbor Freight ones aren't too bad, the biggest problem is that they grab when the steps break through, but they're only $8.99 for a 3-pack. One really good step drill can cost up to $70. The Harbor Freight ones also leave a messy hole, but that's easily solved if you go through the opposite side of where you started for the last step, then use the next larger step as a deburring tool on both sides to clean it up.I would start with a small cobalt but, maybe 1/8”. Then finish it off with a 1/2” step bit if you have the clearance on the other side of what you are drilling.
I like his channel - my fiancée complains about his annoying voice. Some day I'll work up the nerve to tell her "At least he doesn't have to hear yours every time he makes a move..."I saw a shootout of several brands on youtube on the project farm channel and the dewalt outperformed several other brands.
Some larger hole drilling jobs that we do not want the drill to stall from the recommended "low speed" pressure on the stainless steel ... we have a very powerful Hitachi drill we bought at Lowes that we sometimes resort to. Warning ... how is your upper arm & shoulder strength?If you have to install a 1/2" conduit fitting the hole size needed is 7/8"
I do if I'm drilling thick material on a drill press, but since the main reason for oil is to keep the tool from getting hot and they don't get hot drilling 12 gauge stainless, I just don't bother. I can get hundreds of holes in stainless out of one 1/8" cobalt bit and one Harbor Freight step drill.I always use cutting oil with either step bits or cobalt bits.
A electricians knockout set will do it on fragramatic vacs and they will be perfect do it all the timeI have some new fragramatics vacuums I need to drill a half inch hole through for the electrical connection. Last time I used my vari bit but it ruins the bit. Anyone know of a better way to drill a half inch hole through the vacuum?