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SteveM C/IL 
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Joined: 12 Sep 2009
Location: Shelbyville IL
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 Topic: drilling tip
Posted: 14 Aug 2024 at 10:50pm |
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Many of you likely know this already but drilling through stainless can be a chore. Years ago the guy at the welding shop told me to use castor oil. I tried it and was pleasantly surprised. Tonight I had to drill some 5/16 holes in a plate of 3/16 SS. Put a drop of castor at each spot and again surprised how well it works. For someone who doesn't know this,this could be a great tip.
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desertjoe
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Joined: 23 Sep 2013
Location: New mexico
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Posted: 15 Aug 2024 at 8:36am |
HHHMMmmmmm,,,,Castor oil,,,huh,,?? That right there is something great to know,,!! Many Thanks SteveM,,,I'm now wondering if it will work on bed rails as them things are super hard for obvious reasons. I'm gonna check if you can get a small bottle to give it a try. 
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jaybmiller
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Joined: 12 Sep 2009
Location: Greensville,Ont
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Posted: 15 Aug 2024 at 8:47am |
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machinest I knew, used to regrind drills 'angles' for SS use, also had a special set for polycarb(aka Lexan ).
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3 D-14s,A-C forklift, B-112
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desertjoe
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Posted: 15 Aug 2024 at 10:14am |
Well, Jay,,,that right there is very interesting,,,you don't remember what that "angle" was,,,?? I would very much like to try that angle on ,,,,bed rails,,,????
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Hubert (Ga)engine7
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Joined: 12 Sep 2009
Location: Jackson Cnty,GA
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Posted: 15 Aug 2024 at 2:59pm |
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Thanks for the advice. I always thought castor oil was for something else. đ
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Just an old country boy saved by the grace of God.
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Ed (Ont)
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Joined: 08 Nov 2009
Location: New Lowell, Ont
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Posted: 15 Aug 2024 at 7:59pm |
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Would cutting oil work?
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jaybmiller
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Location: Greensville,Ont
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Posted: 15 Aug 2024 at 8:01pm |
ANY oil is better than no oil ! I've got 3-4 cases of 10W40 here I use.....
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3 D-14s,A-C forklift, B-112
Kubota BX23S lil' TOOT( The Other Orange Tractor)
Never burn your bridges, unless you can walk on water
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desertjoe
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Joined: 23 Sep 2013
Location: New mexico
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Posted: 17 Aug 2024 at 9:01pm |
I had NO idea what Castor oil was used for but the thought of it being good for drilling SS,,and maybe even on them bed rails that I use a number of them,,,,, My curiosity finally got the best of me when I had to go to Walmart this morning and remembered about that dang Castor oil,,,,,,wrong, wrong,,,wrong!!they only had one good sized bottle and it was marked $28.66,,,,what in the heck is in that bottle ,,,,? Must be gold shavings,,,chit my curiosity left me in a heartbeat,,,,, 
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steve(ill)
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Joined: 11 Sep 2009
Location: illinois
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Posted: 17 Aug 2024 at 9:24pm |
"SOME" bed rails are HARD... dont know why , but they got little chips of SOMETHING in them.. like carbide !! ..
Had an old machinst at work and i needed a 1/4 inch hole in something that was IMPOSSIBLE to drill... He worked over a carbide concrete drill bit... and put a cutting edge on it like a steel drill bit... SLOW and LOTS OF OIL and it did the job... I was impressed !!
Edited by steve(ill) - 17 Aug 2024 at 9:25pm
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Like them all, but love the "B"s.
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desertjoe
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Posted: 17 Aug 2024 at 9:51pm |
 Hubert (Ga)engine7 wrote:
Thanks for the advice. I always thought castor oil was for something else. đ |
Well, Hubert,,,what "WAS" or "IS" it used for,,,? Man, that right there is some expensive Chit,,,, $28 for a small bottle,,,? 
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desertjoe
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Posted: 17 Aug 2024 at 10:10pm |
Hey Steve,,I have one of those hand held Concrete Hammer drills that one of the carpenters gave me years ago. The tip is four point like a Philips screw driver and remember that he told me not to sharpen it as it would ruin the metal,,,??? You would hold the shaft and strike the drill and rotate the drill 1/4" every time you hit the drill. Its amazing how quickly you could drill a 1" hole in any concrete.
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HudCo
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Joined: 29 Jan 2013
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Posted: 17 Aug 2024 at 10:20pm |
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srainless is realley very soft but heats and or workhardens very quickly , then it is hard to work with must saw and drill slow and keep cool and lubed and its not bad to work with and by al means dont center punch and harden were you have to start drilling just start your holes with a center drill
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Les Kerf
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Posted: 18 Aug 2024 at 2:58pm |
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In the early days of aviation, castor oil was used as engine lube because it didn't thicken up excessively in the cold temps at high altitude. Many of those engines were rotary types that used a total loss oil system; the oil fumes blew out all around the airplane and the pilots had to breathe the fumes, often resulting in them feeling compelled to relieve themselves immediately upon landing. Oh, the good ol' days!
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nella(Pa)
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Posted: 18 Aug 2024 at 3:38pm |
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When I was young about 65, 70 years ago, when I would watch the midget races you could smell the cars that used castor oil.
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Hubert (Ga)engine7
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Posted: 18 Aug 2024 at 5:38pm |
desertjoe wrote:
Hubert (Ga)engine7 wrote:
Thanks for the advice. I always thought castor oil was for something else. đ |
Well, Hubert,,,what "WAS" or "IS" it used for,,,? Man, that right there is some expensive Chit,,,, $28 for a small bottle,,,? |
Joe, it was used to âlubricateâ your âplumbingâ when you were a little bit âplugged upâ and you had best not get too far from the pot. What section in Wally World did you find it?
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Just an old country boy saved by the grace of God.
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Coke-in-MN
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Posted: 18 Aug 2024 at 6:12pm |
https://www.facebook.com/reel/668025000862887
A real good video on quality and drill performance over several brands and within brands themselves - Seems just about every bit is now made in China - except 1 IS , and one German drill company . From 0 holes in mild steel for one brand to over 480 holes - using same bit with another
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Life lesson: If youâre being chased by a lion, youâre on a horse, to the left of you is a giraffe and on the right is a unicorn, what do you do? You stop drinking and get off the carousel.
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DiyDave
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Posted: 18 Aug 2024 at 7:14pm |
The whole caster oil thing reminds me of a bit of useless knowledge tucked away in a corner of my brain... If you really want to roll coal and all's you have is a gasser, drill a hole into the ex manifold, and rig a bulb to squeeze a load of castor oil into that hot manifold, and hit the gas, clouds of black smoke will emanate from your tail pipe. I wouldn't try this on a car with a cat converter...
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desertjoe
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Posted: 18 Aug 2024 at 8:07pm |
Hubert (Ga)engine7 wrote:
desertjoe wrote:
Hubert (Ga)engine7 wrote:
Thanks for the advice. I always thought castor oil was for something else. đ |
Well, Hubert,,,what "WAS" or "IS" it used for,,,? Man, that right there is some expensive Chit,,,, $28 for a small bottle,,,? |
Joe, it was used to âlubricateâ your âplumbingâ when you were a little bit âplugged upâ and you had best not get too far from the pot. What section in Wally World did you find it? |
Well Chit, Hubert,,,I had no idea,,,!!! Now I know,,, Actually as I walked into Walmart,, I whipped out my trusty IPhone and called up the Walmart App to see where the castor oil might be and long about then,,I knew I was not gonna buy any of that high priced "stopper plugger upper" especially at the $28 price.,,!! the app said it is at the Pharmacy area,,,, I keep a bottle of Tap Magic at my lathe and one at the big drill press. The Tap Magic is made especially for machining and drilling and costs less than half of that dang castor oil,,,,,  |
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Clay
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Posted: 18 Aug 2024 at 9:58pm |
We use caster oil for belt dressing on our J.I. Case 140W square hay baler. Just a very very small amount on the flat belt will improve the grip and hold to the center of the pulleys.
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Coke-in-MN
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Posted: 19 Aug 2024 at 2:38pm |
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Remember back in youth when I had a 35 Ford 5 window coup stock car , every so often at a race you could smell burnt castor oil in the air as some would add it to their fuel - said gave better performance - but supplemented Aviation fuel of high octane which had no lube in it .
Remember the smell well as those dirt tracks back then were bowl shaped depressions , with fans setting on hill around them .
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Life lesson: If youâre being chased by a lion, youâre on a horse, to the left of you is a giraffe and on the right is a unicorn, what do you do? You stop drinking and get off the carousel.
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nella(Pa)
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Posted: 19 Aug 2024 at 5:00pm |
Coke-in-MN wrote:
Remember back in youth when I had a 35 Ford 5 window coup stock car , every so often at a race you could smell burnt castor oil in the air as some would add it to their fuel - said gave better performance - but supplemented Aviation fuel of high octane which had no lube in it .
Remember the smell well as those dirt tracks back then were bowl shaped depressions , with fans setting on hill around them . |
I think some would add nitro in the mix also. When I made model airplane fuel I would mix methanol, castor oil and nitro methane.
Edited by nella(Pa) - 19 Aug 2024 at 5:24pm
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