I have mine drilled 1:30 label too, BUT, and I say that loudly, I could NEVER use it on even medium to oily stuff. I use mine on the lighter side of medium to light. You will notice my speed is high, and even though I have decent revs, my speed reduces the EUs hook, but I do not see the "strength" that some have seen.
Dave
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Romans 1:15&16; "So much as is in me, I am ready to preach the gospel to you to you that are at Rome also. For I am not ashamed of the gospel of Christ; for it is the power of God unto salvation, to everyone that believeth; to the Jew first, and also to Greek!
F.O.S. Members, Our Assignment Should We Choose To Accept It, Polish and Sharpen Up Our Saws; Pins Have Been Spotted, and We Are To Saw 'Em Up!!
Bomb Squad Certified and Licensed Diamond Cutter