Drilling into angle iron HELP!?

Question

I am trying to drill into 1/4" angle iron and I am going through too many bits. I am getting 2 holes per bit. I am using standard black bits. Would going to a higher quality bit help out with this, also would having a drill press help?

Answer 1

Use high-carbon steel bits.  When you buy new bits, it will usually say what kind of material they are good for.  High-carbon will cost more, but last much longer.  Drill presses have more torque than a standard drill and are made for continuous use, whereas a hand-held drill will overheat fairly quickly.  A drill press also makes it easier to apply even pressure.

Answer 2

Both a drill press and carbide bits would make this job a lot easier.

Answer 3

What size hole are you drilling?  If the hole is larger than 3/16", you should start with a small bit, such as 1/8", and then step up to the final size.  A drill press would help, as you could set it on a slow speed, which will also help your bits to last.  If your hole is 5/16" or larger, squirting a little cutting oil as you drill will cool the bit and help it stay sharp.  Hope this helps.

Answer 4

yeah those black ones are cheap, and i would go with a better one(just not those titanium coted bits)... remember you can also sharpen bits, but when you do make sure you dont get them too hot and keep a cup of water/oil to cool them off nearby... a drill press would make it easyer but not more efficient... step drilling might also be an option depending on the size of the hole

Answer 5

Put a cutting oil or compound on the bit, drill slower for the larger diameter holes, also use a high quality industrial diamond bit. Be certain the drill is in forward and not reverse.  Drill a pilot hole for the larger holes.