Ruining a drill bit is one of the easiest things to do and we see this all the time!  Too much speed and too much pressure are the number one enemies of any cutting tool. We sell very high quality domestic cutting and drilling bits of all kinds; lettered bits, numbered bits, fractional bits, cobalt bits and also carbide burrs. Let me say it again-regardless of the quality, too much speed and too much pressure will ruin the best of bits.

One of the best things you can do is get in the habit of using a drop or two of a good cutting oil. We sell MEGACUT threading and cutting Fluid in 1 ounce and 4 ounce bottles and it is also available by the gallon by special order. This is an excellent cutting oil. (meets military spec. MIL-STD-767). Also let me note that using WD40 is the WORST thing you can use as a cutting fluid. It does NOT cool … it evaporates and can actually trigger heat and friction. So, save the WD40 for another project. Get yourself some MEGACUT, ease up on the speed and the pressure and you’ll get much better results as well as a longer life span for the drill bit !!!

broken-Drill bits

Posted by Greg Corby