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Cutting oil

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11 July 2003, 07:34
Randm'Man
Cutting oil
what is the best oil for threading barrels? does anyone know if Do-Drill from brownells works?
13 July 2003, 05:40
rootbeer
Use any good 10W-30 or 10W-40 motor oil, just make sure to keep applying it liberally while cutting. You can't go wrong by overlubricating a cut like a thread. The best policy is to make many shallow cuts and make them slowly; don't rush the job.

[ 07-12-2003, 20:43: Message edited by: rootbeer ]
13 July 2003, 05:58
wallyw
quote:
Originally posted by Randm'Man:
what is the best oil for threading barrels? does anyone know if Do-Drill from brownells works?
I use Mobilmet S122 Water soluable cutting oil. Mixed three parts water to one. The benefit of water soluable is that the water carries away lots of heat.

If you can't install a cooling sysem then Do-Drill is great stuff. Leave the motor oil in your engine.

Wally

[ 07-12-2003, 20:59: Message edited by: wallyw ]
13 July 2003, 07:10
gunnut69
I've always had best luck with water soluable oils for cutting threads but DoDrill will work..