how to drill holes?

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350cutlassguy

Greasemonkey
Aug 24, 2010
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Can someone tell me how they drilled holes throw the floor for a floor shifted? I'm using a driill bit and it doesn't work at all..
 
You need a new drill bit. Drill bits don't last very long drilling through metal. They all say carbide this and that but they never last long at all.
 
If your drill isn't making it through sheet metal, something is wrong.

#1: Make sure you have your drill in forward rotation. I've caught myself trying to drill stuff in reverse before! LOL
#2: Make sure the drill bit you are using is one that is suitable for metal.
#3: Make sure it's sharp! You can buy resharpening kits. The kits are definitely not all built equally, so shop around.
#4: Force and speed. Small bits need speed, but easy on the amount of force you apply (you'll bend them). Large bits can utilize a fair amount of force, but the speed needed is less because their larger diameter provides a higher surface speed compared to smaller bits at the same drill motor RPM.

#5: Good luck!
 
thanks man.. I broke my dads small bit and he was pissed. Lol and I was doing it in reverse which made me look stupid. Lol and I got it but I need to know how big the hole has to be for cable..
 
redboy504 said:
You need a new drill bit. Drill bits don't last very long drilling through metal. They all say carbide this and that but they never last long at all.
X2
 
Good question, a lot of people don't know how to drill holes through metal. First sharpen the bit with a bench grinder, die grinder, dremel etc or use a sharp bit to begin with -- look for a video online or just start to do this by yourself, you'll get the hang of how to shave them after a while. Use a punch to start your hole. Always use a cool bit, keep it cool by spraying wd-40 or equivalent while drilling, when the bit or metal starts to burn stop. Stop and wait for the bit to cool a while, then go back. Do not use speed or force (within reason, don't just limp wrist it). A good sharp drill bit cuts, force and speed burns, the object is to cut the metal not burn through it. Let the bit do the work. You may find yourself taking a lot longer to drill a hole than you normally do, but take care of them and you won't bust anymore bits or burn them up.

And once you know how to use a drill bit for metal you won't feel like buying those sexy expensive drill bits are such a waste anymore, because they do help enormously.

I've broken many many cheap chinese drill bits before learning, and make brackets from thick steel for everything on my cars :soapbox:
 
Thanks.. ill give it a try tomorrow when my bracket for my floor shifter comes in.. I ordered those headers I was talking about and its giving me a ton of issue man..🙁
 
Ask any metal worker, keeping the bit cool is vital to long life, I put a dab of grease on any surface I will be drilling unless it is very thin mild steel.

Roger.
 
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