Need help identifying the weird grind on this drill bit - Printable Version +- Woodnet Forums (https://www.forums.woodnet.net) +-- Thread: Need help identifying the weird grind on this drill bit (/showthread.php?tid=7324107)

Need help identifying the weird grind on this drill bit - Eurekan - 10-21-2016 I bought several surplus industrial tools. In the lot was an oddly ground drill bit. Seems this is deliberate but I can find no reference anywhere to this kind of grind. Does anybody recognize it? It sort of like a Forstner bit for metal.  It is a 1/4" drill bit so it was hard to get a good picture. Any ideas? RE: Need help identifying the weird grind on this drill bit - MikeBob - 10-21-2016 I am guessing a brad point style of dolling bit. I have some from Vermont Tooling that have a Brad point and a spur on 2 sides. Cant find them but this is close. https://www.amazon.com/Vermont-American-14604-Precision-16-Inch/dp/B001AHWM8A/ref=sr_1_fkmr1_2?ie=UTF8&qid=1477096292&sr=8-2-fkmr1&keywords=vermont+spur++brad+point+drill+bits RE: Need help identifying the weird grind on this drill bit - JGrout - 10-21-2016 It appears it may just be a step point done by someone who needed to have one and did not want to buy one  the one thing it is not is a brad point drill RE: Need help identifying the weird grind on this drill bit - Eurekan - 10-21-2016 I've used it once to go through some 14 ga sheet metal and it went through it fast, RE: Need help identifying the weird grind on this drill bit - JGrout - 10-21-2016 that tends to strengthen my conclusion that it is a custom ground step drill