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how to drill holes in the frame

andyblack

andyblack

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I'm trying to drill some holes in my frame to mount the sliders I'm building so I won't have to weld them on. Only thing is, the frame is incredibly hard to drill into! In fact, I can't get even a small bit (that I know is sharp) to start to drill. What is the hot setup for drilling holes in a truck frame? I've heard of carbide bits. Would they help?
 
MagDrillPress_TM.jpg


ok, just messing around, but magnetic drill presses are badarse... we have one at work..

in seriousness, any fresh bit should cut.. it's only mild steel.. start with a smaller pilot hole, then enlarge.. slow speed and oil...
 
when i did mine i ground the cobalt bits to a split point...and it drilled like butter
 
I've always though it went through pretty easily, just lots of pressure and keep the bit cool

I just use soap and water in a spray bottle as a coolant, seems to work better than wd40

I start with a smaller and then step up to a larger
 
howdiy said:
I've always though it went through pretty easily, just lots of pressure and keep the bit cool

I just use soap and water in a spray bottle as a coolant, seems to work better than wd40

I start with a smaller and then step up to a larger
Click to expand...

Soap is good but cutting oil is better, oil is no good, neither is WD40.
The frame is so soft you must have junk bits or a bad drill, I never had problems drilling in these frames.
Now on my big rig that is different, the frames are hardened steel, I still was able to drill holes but took me longer and more cooling needed.
 
Like Paul said. USe a real slow speed compared to wood speed. I had the problem then slowed down to the low speed(high torque) setting on my drill and it worked well.
 
I think I must need some new bits. Unless they make a magnetic drill press that can fit under the truck...:laugh:
 
what i use for all of my hole drilling is my annulary cutter from blue point cuts faster than any drill bit on the market the blue point # is ga219b i drill all types of frames big truck and pick up in seconds compered to drill bits the cost was about 120.00 for kit but well worth every penny no sparpening bits or any thing i have 14 volt drill cuts rit though big truck frames like butter or one can get the same kit from kimball midwest look them up on line and see pics of what i am talking about
 
I had to bring this thread back to life to thank everyone for all their advice and to tell yall that I went out and got me some cobalt bits and was able to drill the holes without too much trouble. Since all of you told me about different types of bits, I researched them on the web and found out what the differences are between HSS, titanium-coated, nitro, cobalt, carbide, etc.

I found out all about annular cutters too. They seem like the thing to have, but they are expensive!

Peace out!
 
annulars cutters yes they are expesive but the kit i gave the numbers for are about 120.00not bad compared to all the drill bits but never go dull cuts faster allthe basic sizes one needs 1/4 to 3/4 holes i have had the same ones for about 4 years now cuts just as fast now as the day i bought thembut good luck with drill bits now go get yourself a drill doctor to shapen them each time you use them
 
So do you need to drill pilot holes with the annular cutters like you do with regular drills, or could I use a 9/16 annular to drill a 9/16 hole with nothing else needed?
 
no!!! thats the best thing about them center punch and start drilling no poilt holes keep prusser on them right speed drills right though pops the slug out on its own no jaming drill bit catching nothing just fast clean hole
 
Excellent! What are yours made of? I saw that some were HSS, some were cobalt, etc. - just like drill bits.
 
i really dont know like l said i bought mine from snap on but i have bought new ones from kimball midwest when i broke one
 
well 20.00 bucks is not to bad i would still buy them today but if you check out kimball midwest they have the same set might be a little better price they are one of my venders here at work i deal with good products some good pricing to here is the phone number to my rep 1-800-455-0145 her name is michele call her to get the low down like i siad might be better price i did find there replacement bit were lot better price i broke 2 while back got new from them
 
tourdog said:
well 20.00 bucks is not to bad i would still buy them today but if you check out kimball midwest they have the same set might be a little better price they are one of my venders here at work i deal with good products some good pricing to here is the phone number to my rep 1-800-455-0145 her name is michele call her to get the low down like i siad might be better price i did find there replacement bit were lot better price i broke 2 while back got new from them
Click to expand...


I might just do that, I need something like that, I will call her monday.
:D
 
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