Best Cutting Tool Coolants of 2026

"As someone new to milling, I’m genuinely impressed by how this product keeps my end mills cool and my parts shiny, even during long, heavy cuts. It leaves a light residue that’s easy to wipe off, and I never worry about rust or sticky messes. I appreciate that it’s water-based and safe for my machines—it’s now a must-have in my shop."

"When I started cutting heavy steel with my mag drill, I wasn’t expecting my cutters to stay in such good shape. With this fluid mixed with water, I’ve drilled tons of holes and my tools show no wear at all. It’s really effective and a great value for how long it lasts."

"I switched to this biodegradable, water-based fluid for my drill press because I needed something that wouldn’t make a mess or stain my woodworking projects. It cleans up completely with water, and I can move from drilling steel or rocks to wood without worrying about oily residue. Perfect solution for a shared workspace!"

"I've noticed a significant improvement in both cutting and tapping metal since switching to this fluid. The smoothness of the cuts and threads is impressive, and a small amount lasts a long time. It's easy to use and seems to keep my tools from wearing out quickly."

"I used this on my mountain bike's bottom bracket threads, and the results were excellent. I chose it over WD-40 just to be safe. Now, I always keep a bottle handy for tapping tasks."

"This product is great for keeping drill bits cool and lubricated, especially my small metric bits. It really helps prevent overheating during use."

"I used this on my horizontal metal cutting band saw and was amazed by how smoothly it cut through solid steel. The blade stayed cool, there was almost no noise or gumming, and the saw made a perfectly square cut—even with an old blade. Since it's concentrated, I’ll get years of use from just one purchase."

"After switching from WD40 to this coolant on my mill and lathe, I noticed much cleaner cuts and almost no smoke or mess. The blade stays cool, and the cutting quality is far superior. It’s a concentrate, so the price per gallon works out great. Even using a simple hand pump sprayer, it performed exceptionally well."

"I tested this in my CNC machine and found it lubricates the cutting surfaces extremely well. I’ve had zero issues with my equipment since using it, and the price is excellent for the performance."

"I set up a coolant system for my 4x6 bandsaw using this product, and it's been extremely effective and long-lasting! Even after many cuts, the coolant in my tank still looks fresh, thanks to its great value as a concentrate. I've barely used a quarter of the bottle so far."

"I mixed this coolant a little richer than the recommended 10:1 ratio, and it’s been outstanding with my horizontal bandsaw and various drilling operations. I’ll definitely keep using this for any of my machining or fabrication projects!"

"The coolant does a great job keeping my bandsaw blades cool and sharp. My only wish is that it was a little more affordable."

"I was really impressed with how well this oil kept my chisels sharp and ready to use. I’m looking forward to getting even more of my tools in top shape with it."

"After using it to drill 169 holes in 3/16” steel, my bits stayed sharp much longer, and there was hardly any smoke. I did go through the whole bottle, but the results were totally worth it."

"Great product for drilling through thick stainless steel—just a small amount kept my drill bit cool. Overall, I’m happy with the finish and how long my cutter stayed sharp."

"I like that this coolant doesn’t have a strong smell and performs well for different machining jobs."

"For my bandsaw and when drilling or notching holes, I prefer this product—it’s easier to clean up than oil, especially if I plan to weld the parts afterward."

"I was specifically searching for a nontoxic coolant that wouldn’t mix with way oil, and this fits what I needed."

"I set up a coolant system for my 4x6 bandsaw, and this concentrate has worked incredibly well. The coolant stays clean and clear in the tank, and even after many cuts, I've only used a tiny fraction of the bottle. Great value for long-term use!"

"I've tried WVN's Smooth Saw coolant and I'm honestly very impressed. Mixing it just a bit richer than 10:1 gave me fantastic results on both my horizontal bandsaw and during multiple drilling operations. I'll be sticking with this for all my machining and fabrication jobs!"

"This product does a solid job keeping my bandsaw blades cool and sharp. My only wish is that it was a bit more affordable."

"I found this product to be a great value for the price and it fit perfectly on my work station. I had no issues with leaks and it performed exactly as I needed for my project."

"After trying out several alternatives, I chose this one because it was a perfect fit for water application. The quality meets my expectations, especially at this price point."

"I did experience some leaking from the blue line when running water through it, but customer service reached out quickly and sent me a replacement hose after I shared a video. The magnet could be a bit stronger, but I understand there are regulations about that. Overall, it works great as part of my camping water system!"

"I've noticed a huge difference in my drilling and tapping projects since using this cutting fluid. It cuts down on bit chatter and really helps make cleaner tapped threads. Even though it's a bit pricey, a little goes a long way, making it totally worth it."

"This is the best cutting oil I've used for threading and drilling steel. I used to rely on whatever oil was around, but this product is far more effective at keeping my drill bits cool and sharp. It's become a must-have for any bolt extraction or tough jobs."

"After using this lubricant, I no longer break drill bits like I used to. It's like a magic potion for my tools—prolongs their life and makes the process much smoother. Highly recommended for anyone working with metal."

"I've trusted Tap Magic for over 40 years—it consistently delivers excellent results for drilling and tapping metals. I wouldn't use any other cutting fluid on my drill bits or hole saws."

"For me, a little bit of this product goes a long way. The applicator is easy to use and there's barely any odor, which makes it pleasant to work with."

"This stuff really impressed me—it's a great value and worked exactly as I hoped. I'd absolutely purchase it again and recommend it to others."