drill bits that will cut anything

[59flatbedford]

ok after spending two or three hours ****ing around trying to to get a twisted off easy-out out of the twisted off exhaust bolt i decided i want some really good drill bits. for those of you out there that have ever broken an easy out you know them suckers are harder than hell. So is there a kind of drill bit that will drill just about anything and last fairly long. What kind of materials should i look for and brand recommendations are always good, perfered made in USA of coarse. thanks guys

 

[scottguehne]

I think to drill hardened steel such as an easy out, you're going to need a carbide drill bit. HSS and even cobalt are going to dull immediately, at least in my experience.

http://www.use-enco.com/CGI/INSRAR2

That link will get you started. Browse around of course to find exactly what you are looking for. Aside from drilling hardened stuff, I got a 29 piece USA set of cobalt drills from that site for about 80 bucks that serves me pretty well.

 

[G1GRANDEUR]

when you drill hard stuff, do you run drill on full speed?

 

[Rnz520]

slow is the key

 

[bmxr4life87]

We have some drill bits at work that will drill through grade 8 bolts like butter we use em on the bolts that hold the floor decking to the frame rails on uhaul trucks and normally the high quality drill bits the shop supplies us won't touch em but these new bits keep on going and ask for more we apply liberal amounts of cutting oil while we drill I don't know any specifics but my boss told me to rathole a few in my box and they are 15 bux a pop

 

[mustangcrazy77]

It's much easier to weld a nut onto the easy-out and twist it back out. A regular drill bit should then suffice.

If by chance you still need to drill through the bit, I'd recommend going to a pawn shop to pick up the carbide tipped bit. I picked up several of the them for $1 a pop and they'll cut through damn near anything.

 

[59flatbedford]

i figured i would need carbide. so manufacture recommondations???

 

[rsanter]

if you have a plasma or a torch you can heat it up a bit and it will take some of the temper out of it and soften the material up a bit.
there are some drill bits that my dad bought at SEMA this past year that are suposed to be able to drill into hardened stuff with no problems. I have yet to try them

bob

 

[OldCarGuy]

Just use a masonry spade drill bit. You can purchase one from any hardware, big box, or Sears store...

 

[OccupantRJ]

Carbide likes speed, and will drill a lot of materials, but I bet you won't use one in a handheld drill and not chip it. There are also carbide TIPPED drills available. Look at www.mscdirect for lots of machining supplies.

RJ

 

[Rory Bellows]

Don't drill the easy out. All you need is a hammer and a punch. Break them with a punch and remove the pieces with needle nose pliers or forceps. It works! I've never been able to drill them out even with heating them with a torch or carbide masonary bits.

 

[Packard V8]

Practically impossible to drill out a tap or ez-out with a drill press, much less a handheld drill. Production shops try to break them out. If that doesn't work, we put the head in a mill and machine it out and repair the hole with a threaded insert.

thnx, jack vines.

 

[Mr.Nutcase]

Don't drill the easy out. All you need is a hammer and a punch. Break them with a punch and remove the pieces with needle nose pliers or forceps. It works! I've never been able to drill them out even with heating them with a torch or carbide masonary bits.

I would recommend this, I learned in that from one of instructors..

 

[E.rodz]

you can like someone else mentioned weld a nut on it sometimes this works somtimes not. but try this it works awsome use a masonary carbide tipped bit with a hammer drill the hammering affect breaks and shatters the hardned materail and just pick it out as you go.

 

[DHS]

Bad Dog brand has a set of bits with lifetime warranty that will drill through just about anything. I have seen them drill through glass, tile, Nicolsen files, taps, rotors, and wood, all with same bit. They don't drill as fast as a standard bit but they really impressed me.

 

[59flatbedford]

yea the only problem with breaking it is i dont think i own a punch or chisel that small that would even think about breaking it before it bent. and the only problem with welding the nut on is i always break them off down inside the hole where i cant get to it. ill have to look into some good bits and good punches and chisels.

 

[OccupantRJ]

A carpenter's nail set or 3 with reground or reshaped ends are your friend in the machine shop. A reground Apex long screwdriver bit is also a good tool to have to help remove bolts and broken off harder items. ****** them up, then regrind as needed to keep a fresh point. I keep nail sets in my bench block holes at work, and don't even bother to buy Starrett center punches any more. I don't know if Harbor Freight nail sets are hard enough or not. I've intended to try them some time. The ones I have are old school Stanley.

RJ

 

[mustangcrazy77]

yea the only problem with breaking it is i dont think i own a punch or chisel that small that would even think about breaking it before it bent. and the only problem with welding the nut on is i always break them off down inside the hole where i cant get to it. ill have to look into some good bits and good punches and chisels.

In that case you need to build up a weld on-top of the easy-out until it protrudes past the outer surface....at which point you should have a stub sticking out which you place the nut over. Then all you have to do is weld the nut to the stub and turn it clockwise to loosen the easy-out's death grip.

 

[rhandwor]

http://www.ebay.com/ Search 350182902074 Better Quality.
330368774985 Cheaper quality.