lastcowboy32
Well-known Member
Every time that I go to drill metal, I go to Home Depot, or Lowes, or Tractor Supply...and I buy the best bits that they have for drilling metal.
Aaaaaaaaaand I might be lucky enough to get one hole drilled, before it turns to a blunt instrument.
I am running cool/slow. I am even using drilling oil (OK...sometimes)
Even so, I've watched videos of an engine rebuilder fixing cracks in cast iron by drilling something like ten or twelve holes in the crack and then peening these special rivets into the holes. OK...what kind of bit is he using? He just drilled ten or twelve holes in cast iron...with no fluid or oil...one after another...with the same bit.
And every hole drilled as easily as if he was drilling into a maple board.
What kind of bit is that?
I have a tormek sharpening system in my shop at home; so I don't care if they are really expensive bits...but able to be sharpened.
Aaaaaaaaaand I might be lucky enough to get one hole drilled, before it turns to a blunt instrument.
I am running cool/slow. I am even using drilling oil (OK...sometimes)
Even so, I've watched videos of an engine rebuilder fixing cracks in cast iron by drilling something like ten or twelve holes in the crack and then peening these special rivets into the holes. OK...what kind of bit is he using? He just drilled ten or twelve holes in cast iron...with no fluid or oil...one after another...with the same bit.
And every hole drilled as easily as if he was drilling into a maple board.
What kind of bit is that?
I have a tormek sharpening system in my shop at home; so I don't care if they are really expensive bits...but able to be sharpened.