Pilot holes??

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mp18d

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So I'm building some gym type equipment, and have to drill a number of 5/8" holes in 11gauge mild steel rectangular tubing.
I don't remember from shop class if I should drill pilot holes to save wear n tear on drill bits and drill press, or just go to it with the 5/8 drill...:dunno :dunno
Does anyone else know??

Thanks!
Mike
 
ckamp52

ckamp52

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drill the pilot holes...reduces the bit walking on you for more precise holes and as you mentioned it will save you a lot of wear and tear on you bigger bit which costs more than the small bits you can use for the pilot holes i would go with about a 3/16 then move on up to the 5/8 and use some lube should be good to go
 
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Or even a Step bit ?

If yer using a Drill Press, you could get'm done purdy quik. Makes a nice clean hole too.. :sweet
 
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mp18d

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Yeah, almost forgot about cutting oil...Musta cut class that day!:sly

Thanks for the help!

Mike
 
DaveBen

DaveBen

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Ok on the prop wash, but I am having a hard time finding the Flight Line. Home Depot or Lowes?

Dave :D
 
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It's right next to the Chow Line.. Dave.. at both stores. :sly;)

Joe
 
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