Hello..I'm new to metal working with a new flex shaft and have been trying without success to drill a simple hole through metal. I've watched youtube videos and think I'm doing all I need to do but somehow I'm missing something. I'm using diamond bit that oddly to me are squared off at the ends rather than pointed which would make more sense to me if its going to bore a hole but these are what I purchased as being used for drilling through metal and seems to be what Im looking at in the videos.. I hold perpendicular and begin slow but wind up holding so long that the metal is too hot too hang on to so continue on with a small piece of wood..still no luck. Can anyone tell me exactly which drill bit I should be using..I'm assuming that Has to be the problem. It can't be me. :-)
Thanks Michelle..I *think I'm pushing fairly hard! I am doing the center punch. It would be nice to pop into a working studio and actually see what Im dong wrong. A drill press is better than the flex shaft? I'll look into that..thanks again! lots to learn.
Post by salvatorepaul on Sept 27, 2015 19:45:52 GMT -6
Diamond bits are never used for boring or drilling holes, they are just for cutting lines and decorative purposes, they have no edges so they don't grip the metal, they simply scratch the surfaces . Drilling will always require drill bits..I will absolutely be able to help you with anything metal related. Can you photograph the equipment and drill bits your currently using? Also, what gauge metal are you drilling
Thank you everyone for the offers to help..SalvatorePaul..I will do that, but I suspect the problem may be resolved. I discovered that I was operating my flex shaft in reverse. There's your giggle for the day! :-) :-)
Post by salvatorepaul on Sept 28, 2015 12:10:45 GMT -6
I certainly hope that you have solved the issue, however I do have some degree of doubt that was causing the issue. The reason for this DoubtIs that if you were using a dIamond bit,
which rather than having teeth or blades has abrasive diamond surfaces for the cutting aspect, then the direction of the Spinwouldn't make any difference at all. I am left handed and run my Drill in reverse often as I can. and just in case the spin setting was not the problem I will leave you with this photo and info.
in the picture below you will see 11 bits in a group the first or top five bits are diamond tipped, these are solely for decorative purposes, cleaning up marred metal, Etc But everything they do is limited to the surface and superficial results,
the second two are Ball burrs, they cut holes and can widen a drill hole, cut a seat for a stone setting, things of that nature.
after that are a setting burr and a hart byrr, these are used in relation to setting stones primarily, cutting prongs and channels
the second to the bottom is known as a Budburr. with its conical shape tip it is not designed for drilling holes but burrs of this nature are your next best bet if you do not have a drill bit
the bottom piece is what you were looking for could drill holes into metal and go clean through to the other side or straight up drill bit. generally speaking you will want the smaller sizes that are hard to come by if you're not in the jewelry supply shop but they're out there. to go clean through any metal thicker than 22 guage this is what you need
Post by salvatorepaul on Sept 28, 2015 12:13:40 GMT -6
Also before you start drilling you will want to make a Mark with a punch of some sort. anything made of steel or iron which is 20 will work. simply place the poin9t on the spot you wish to drill the hole through, and tap it with a hammer leaving a little indentation. use this indentation of your guide, place the drill bit inside, and it should cut all the way through by itself without any effort from you.?
Post by salvatorepaul on Oct 1, 2015 23:10:12 GMT -6
You are very welcome Deborah, just remember to start every hole with a punch or a tap with a point and hammer,nthe small indentation where you intend to drill will make it much easier. Also don't press to hard with this, as you see, the shank is wide, but the twist bit much thinner. They are extremely effective but if muscled to much they can break. Just let the bit do the cutting, your job is to keep your hand and pressure steady and even. The tools will handle the rest . you are going for super small holes (1 mm or smaller) you can probably get what you need at any hardware store. The twist part of the bit is all that is required, if you see a small twist bit that you think is the right size, it will work for your purposes. And I said if you have any other inquires, even if you have Numerous inquires, don't hesitate to ask about anything metalsmithing related.