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Registered Member #1403
Joined: Tue Mar 18 2008, 06:05PM
Location: Denmark, Odense C
Posts: 1968
At my work we always use some green cutting/drill compound that smells really nice but which I properly shouldn't eat too much of, bottom line is, its expensive.
So here I was at home in need of drilling and threading a 20 mm long M4 but up to M5, it was really squeking and I feared to break my bit, so I tried with some colza oil I had on my fridge and I could cut through the 20 mm of brass material without a sound from mechanical stress.
Just wanted to share this if you ever find yourself in need of a cutting/drilling aid and want to do it dirt cheap :)
Registered Member #190
Joined: Fri Feb 17 2006, 12:00AM
Location:
Posts: 1567
Whenever I cut through anything thicker than 1/8" with my drill press I constantly dab some motor oil to help lubricate and cool my drill bit. This is a must for any heavy drilling as you will destroy the bit if you do not do this.
Registered Member #1837
Joined: Tue Dec 02 2008, 02:20PM
Location: NYC
Posts: 65
In a pinch you can spit on the tap too. I'm not kidding. I work in construction and it's a trick i picked up along the way. Obviously any proper oil or lubricant is preferred, but it's better than nothing. It wouldn't do anything when drilling due to the high speed/heat but when tapping it's way better than a dry tap. (plus it's way easier to break taps than bits) I spend a lot of time drilling and tapping.
Registered Member #53
Joined: Thu Feb 09 2006, 04:31AM
Location: Ontario, Canada
Posts: 638
When drilling/cutting aluminum the best way to keep it cool and stop it from clogging your bits and blades is to use water. It stops it from melting and bogging up your tools.
Registered Member #1497
Joined: Thu May 22 2008, 05:24AM
Location: Toronto, Ontario, Canada
Posts: 801
I remember when I drilled my 3/4" thick aluminum bars for SCR clamps, I didn't bother trying to use expensive tapping/drilling/cutting oil, just flooded the entire drill site with distilled water.
Make sure to wipe dry and oil your drill press parts after using plain water or tap water.
Registered Member #1956
Joined: Wed Feb 04 2009, 01:22PM
Location: Jersey City
Posts: 172
- For drilling and tapping aluminum just use Alcohol. For me is better than just water. But you have to take care here. You need to start and finish the job pumping alcohol or water on it. If you start without it the tool will get hot, sometimes so hot that melts the aluminum. Then, if you put some water to "cool things down" you probably will reduce the mechanical strength of the tool.
- For steel do not use water. The best home-dirty-cheap stuff that works pretty well is pig lard (shortening - thanks roddenberry). You can just put some on the drill before start the job and then make the hole. Due the high viscosity the lard will stay just where you put it in the drill bit - no need to worry about lubricating during the drilling.
Registered Member #509
Joined: Sat Feb 10 2007, 07:02AM
Location:
Posts: 329
MadsKaizer wrote ...
At my work we always use some green cutting/drill compound that smells really nice but which I properly shouldn't eat too much of, bottom line is, its expensive.
that stuff? I remember using that in high school and thinking it smelled like pancakes or something else delicious, unsure if I'm remembering correctly.
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Cheap cutting/drill compound
