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UNIVERSAL DO-DRILL™ PREMIUM CUTTING OIL Reviews & Ratings

UNIVERSAL DO-DRILL™ PREMIUM CUTTING OIL

The Brownells Universal Do-Drill™ is a premium cutting oil formulated to enhance tapping, drilling, and cutting operations on various metals, including heat-treated steels, molybdenum, and stainless steel. Its non-evaporating nature ensures consistent lubrication throughout the machining process, reducing friction and wear on tools.

This cutting oil is particularly beneficial for chambering and boring jobs, as well as serving as a coolant for lathe, mill, and shaper work. By maintaining its lubricating properties without requiring continuous application, Do-Drill™ follows the tap or drill into the workpiece, ensuring smooth and efficient operations.

Specifications:

Formulation: Non-evaporating cutting oil
Applications: Tapping, drilling, cutting, chambering, boring, lathe, mill, and shaper work
Packaging Options:
- 16 oz. (473 ml) bottle
- 1 gal. (3.8 L) container

Customer Insights:

Users of the Brownells Universal Do-Drill™ cutting oil have reported significant improvements in tool longevity and performance. Many have successfully drilled and tapped multiple holes using Do-Drill™, with taps remaining sharp for future use. This efficiency translates to cost savings, as tools require less frequent replacement.

Incorporating Brownells Universal Do-Drill™ into your machining processes ensures enhanced lubrication, reduced tool wear, and improved overall efficiency, making it an indispensable addition to any gunsmith's or machinist's workshop.

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Reviews Summary

UNIVERSAL DO-DRILL™ PREMIUM CUTTING OIL impresses users by enhancing the lifespan of cutting tools and making machining tasks easier and cleaner. Reviewers appreciate its easy application and effectiveness, often deeming it superior to other brands. While the scent is noted as pleasant, the consensus is overwhelmingly positive among hobbyists and professionals alike.

What Reviewers Are Saying

Product Effectiveness

85%

Users consistently praise the effectiveness of UNIVERSAL DO-DRILL™ in making drilling, tapping, and cutting operations smoother. Many reviewers could distinguish its superior performance compared to other oils, noting it helps achieve cleaner holes and prolongs tool life.

Ease of Use

60%

The product's ease of application is highlighted, with many users noting that it can be applied simply with a brush or straight from the can, making it convenient for both beginners and seasoned professionals.

Value for Money

55%

Several reviewers mention that a small amount of cutting oil goes a long way, reinforcing the product’s value as it lasts over time while delivering effective results, making it a smart purchase for both casual users and professionals.

User Satisfaction

75%

Overall satisfaction is high, with many reviewers expressing their pleasure with the product and recommending it to others. Its favorable performance has garnered a loyal following among users, including hobbyist gunsmiths.

Minimal Odor

25%

One notable feature of the cutting oil is its pleasant scent, which contrasts with many other industrial lubricants. Reviewers appreciate that the product does not have an unpleasant smell, contributing positively to the overall user experience.

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Great cutting oil

Just beginning to drill and tap with my drill press. This oil is far superior to ordinary oil, I'm going to stick with this brand.

Would you recommend this? Yes, I would recommend to a friend

by JOHN GORDON on March 16, 2026

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like Do'Drill a lor

Works great straight from the can for tapping and drilling. Also mix with oil to use for milling and lathe work with steel.

by JOHN WEAVER on November 17, 2023

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It sure do drill!!

Heavy brown cutting oil is heavy brown cutting oil. It works as advertised.

by Matthew Hawes on November 17, 2023

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Good all-around product

Good universal cutting oil. A little goes a long way. Apply to cutting tools with a small acid brush and it take months to use a pint.

Can't beat it

Love this stuff, the name says it all, it DO DRILL. Greatly increases the life of any tool that cuts or bores metal. Great product. Keep it up Brownells.

Best cutting fluid that I've found!

I now use this for all metal cutting opperations - it beats Tap Magic and all of the others that I used to think were the good stuff.

Worth buying even if your a hobbyist

I am a beginning hobbyist gunsmith. I was unsure if I would be able to tell the difference between Do-Drill and my lub, 30W motor oil. I could easly tell the diffence. The holes drilled with D-Drill, either steel or aluminum, drilled easier and cleaner. Since I could use less of the Do-Drill, clean up was much easier. I am very glad I purchased this product and recommend it for anyone who is doing any metal drilling or tapping.

Good quality Product.

Does not smell bad, makes cutters, drills and taps last longer.

Products Works very well.

I have used this product when hand reaming, tapping holes and hand cutting,it works real well. All cutting surfaces seem to last longer using Do-Drill..