Good drill bits for drilling steel

[Dan55]

Cobalt is superior and after using one you will never go back!

 

[cb_13]

Got to(more like was forced to!)try out the drill bits linked in the original post today. Had a torx head bolt on a belt tensioner that was seized and decided to round out instead of come loose. With the help of some good cutting oil and a right angle drill the bits performed exceptionally well.

These bits here

https://www.emisupply.com/catalog/norsem...ml#.WF29IoFOKEc

 

[HangFire]

Originally Posted By: Merkava_4
Toledo Consolidated


Cle-Line, Chicago-Latrobe, Norseman, Cleveland, PTD

 

[andyd]

Sharp bits. I buy 10 packs of 1/8 and 3/16 bits. I keep a drill index of 64ths to 1/2". I have bad luck with EZ outs so I drill out sheared bolts. Slow speed to start with a sharp 1/8 bit. Then more diameter and lots of oil. I hate dull bits. My brother showed me how to sharpen a twist drill on my bench grinder's fine wheel I dont bother with my pilot drills they're too small to get right. but the bigger ones are easy to touch up.