powerrodsmike said:I had a friend who drilled a 1" hole through a piece of 1" thick steel on a homemade trailer hitch with a unibit . ain: :smash: Dry....
There was alot of smoke and I think that unibit mostly burned its way through.
Somehow I don't think they were designed for that type of work.
These tools definitely have their purpose - Irwin makes a good tool but for what the cost of 1 of the Irwin bits - I've bought a couple of the HF sets (and believe me I'm abusing the heck out of them) and although a couple of the bits are worn the rest are holding nicely for the price.scrot said:Harbor Freight has some step drill bits on sale now for $9.99.
When and on what type of metal should they be used?
I don't believe they are as good as regular drill bits for drilling in thicker metal.