Can i use these for thick aluminum or copper metal? and will they break
1145582
Yes these bits will drill metal. However as with any drill bit a good cutting oil is necessary to keep the drill bit cool.
1145583
I have only used the larger size and it did the job but I didn't work on thick metal.
1145584
They will work on softer metal at slow RPM and using cutting oil to reduce heat and friction. They're not really made for harder metals like steel or cast iron.
1145585
I found using these on mild steel they would break when applying any pressure at all!! I would think they would be better for the softer metals!! Remember to clear your chips when drilling copper!! Also use some lube!! I learned this 50 years ago drilling copper!!! Poor quality!!
1145586
I have not tried them on anything, but they appear to be good tools and well made. I would not hesitate to try them, especially on Aluminum. Copper, if it is very thick > 1/8" may need greater care, as copper and brass tend to grab. Often specially ground drills are used to cut more slowly, but I would not be afraid to try them, especially in a drill press where greater control than a hand held drill is possible.
1145587
I actually haven't tried them for such an application but it is my impression that they will break. I would use much higher quality high speed steel drill bits for non-ferrous metals like copper and aluminum.
1145588
The small ones will break. I made some holes in a 2mm aluminum bar and used the small ones to drill a guide hole for the large one; I lost 2 on 3 small ones in the same day.
452335
I would say NO these are fine for trimming electronic parts but nothing thicker I tried trim the electrical studs on a battery box for a 9 volt battery they would not cut through the thicker metal and had to purchase another pair so beware trimming thicker things with these they are perfect for electronic projects.
2065400
They have a coating on them to protect them from rust and oxidation. Drilling into them would allow them to rust then. I don't think they'd break if you drilled into them, I've been pretty rough with them and they haven't cracked at all. However, your biggest issue is going to be ruining your drill bit, and demagnetizing the magnet. If you are going to drill into it, make sure there is no steel in your drill bit, as it magnet will magnetize the bit, and all the magnetic dust will permanently stick to it, ruining your bit. Get a titanium bit, or tungsten carbide bit. You should also make sure the bit is as small as possible so that you minimize your chances of destroying the magnet domains of the material. I'm not positive, but anything larger than 1/8 would probably greatly weaken the magnet. (To justify my claims above: I'm getting my Ph. D. in physics, and magnetic materials, so I'm fairly familiar with magnets, haha)
1757652
For metal you'd be much better off using a carbide or titanium countersink. Amazon has a variety available.
1300975
ANY scroll saw will, with care and skill, slowly cut NON-ferrous metals. Thus aluminum and copper can be cut but NOT at speeds you might be used to with wood. I have cut 1/4" aluminum with some pretty cheap scroll saws. Just take it easy.
1382100
yes , i use them on tool steels up to 65rockw. stainless is much softer but tough.
838205
I would not .I broke the 1/4 20 in sheet aluminum that was not that thick at all .
2064510
They can be tight from corrosion etc. I used a pair of pliers and mine came loose.
504591
Cardstock yes--these are little little magnets-- I was a bit disappointed and was going to use them on aluminum-- they are not strong enough for that.
1827251
Yes. They are very cheap (feel dirty after using for a long time). They are thin. They are copper/bronze on the outside, but silver on the inside (I used a file to smooth down the rough edges and you can see the silver color). They can be bent by hand. However, they are metal. They stack and clink like metal, too.
1346944
No they are not. They are copper plated aluminum wire, the jaws are solid copper. If these were 100% copper they would be a great deal at $100. Copper is three times as dense as aluminum and costs about 5 times as much per pound. If these were all copper you would have about $60 in raw copper(at by the truckload prices) and they would weigh close to 20lbs also.
1667394
I am far from an expert on this . I use them for jewelry making and cut thru stainless and silver plated silverware with no problem. Sorry I couldn't be more of a help.
664590
Are they aluminum cans ???? I think these can crushers are designed to crush only aluminum.. Metal cans can be quite stiff..
1140650
I work on aircraft and it's able to cut 24 gauge aluminum with no problem. Copper i think is softer... So it should work.
539944
Haven't tried aluminum, but 1/16 304 stainless sheets with .035 309 ss flux core wire seems to work well.
1168754
i would try it on aluminum materials only or brass, peanut shells are used for more delicate materials- i try it, it wont hurt.
626700
Yes, That's the way I use mine.. I would not cut anything really hard though.. Copper, Silver and Gold should be OK though