In reply to SV reX :
Great idea, that will give me a reason to buy a drill press. 
In reply to SV reX :
Great idea, that will give me a reason to buy a drill press.
In reply to VolvoHeretic :
Haha!
(it would work with a hand drill too!)
In reply to SV reX :
Every tool I own fits in my pickup because I own a shack cabin on North America's greatest Walleye fishery and I have to drag everything I own down there in case I need to fix something. It's kind of impressive and also really sad. I no longer ask permission to buy tools, even if it is just to replace something I have lost. Now, if I could only drag home and wire up the 180 watt Hobart wire feed welder I bought 38 years ago and have still never wired up (before marrage). 
spandak said:Good tip
Now how do you keep the drill bit from walking or otherwise being not center? Center punching helps but on some of the larger holes I find the drill bits don’t move symmetrically about the center through the material, even after drilling a pilot hole. I hope that makes sense...
Having the drill walk is always an issue, often made worse by dull bits, poor drill alignment, and/or worn/defective drill press bearings. If I was making this exact part, I'd skip most all the steps, clamp the sample part and plate into a drill press*, using the sample part as a drill guide. Much simpler, faster, and more accurate. Yes, I get why it was done the way it was here...
*Doing something like this with a handheld drill is Not recommended.
In reply to kb58 :
*unless you have multistep drill bits, which tend to stay exactly where you started drilling, whether you want to fudge it a little thisaway or not
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