Machine Oil | McMaster-Carr

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Base Oil

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Electrical Discharge Machining

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Thickener

1,620 Products

Lubricating

Oil

Thinner than grease to flow in smaller gaps; dissipates heat and removes dirt and metal shavings

500 products

Penetrating Lubricants

Cut through dirt, grease, and rust to protect tools and components from wear

168 products

Antiseize Lubricants

Prevent threaded fasteners from sticking due to rust, dirt, and heat

202 products

Machining and Fabricating Lubricants

Keep cutting tools cool, lubricated, and rust free; also flush out shavings to avoid damage

104 products

Air Tool Lubricant Kits

Maintain peak air tool performance with included oil, grease, grease gun, and precision-tip nozzles

1 product

Coolants

Apply while machining to dissipate heat, remove shavings, and prevent corrosion

81 products

Grease

Thicker than oil to evenly lubricate surfaces and stay in place

410 products

Oil Additives

Enhance the performance of oil and extend its life

24 products

Assembly Lubricants

Lubricate tight-fitting parts before sliding them together to make assembly easier

17 products

Honing Oil

Clean the abrasive surface of cylinder hones so they'll leave a smooth finish on workpieces

2 products

Dry-Film Lubricants

Goes on wet and dries to form a nonstick film that lubricates surfaces without attracting dust

48 products

Mold-Release Lubricants

Apply to molds before casting parts to prevent sticking, stretching, and tearing

33 products

Cable Oilers

Clamp around control cables to lubricate them without making a mess

1 product

Powder and Flake Lubricants

Help locks, fasteners, and hinges to work smoothly

12 products

Fabricating and Machining

Quenching Oil

Use instead of water in controlled cooling to minimize cracking and distortion in parts and tools

4 products

Raw Materials

Gallium

Transfers heat and electricity as a safe alternative to mercury in thermometers and thermostats

2 products

Facility and Grounds Maintenance

Air Tool Cleaners

Add a few drops to the inlet of air tools to purge rust, dirt, and varnish

1 product

Measuring and Inspecting

Lubricant Analysis Kits

Send in grease, oil, or coolant samples and get an analysis of your lubricant and equipment

2 products