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8-in Single-cut Bastard Tooth Mill File

Ratings & Reviews for Kobalt 8-in Single-cut Bastard Tooth Mill File

4.7
114
Review
 4.7 out of 5
115 Reviews

2 Star
0%

94% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

Customers overwhelmingly praise this file for exceptional sharpness, durability, and precision in fine finishing work. The dual-cut design—single-cut on one side, double-cut on the other—enables seamless switching between aggressive and fine finishing without dulling prematurely. Users consistently report it stays effective on tough materials like tool steel, aluminum, and cast iron. The compact 6-inch size and fine tooth pattern excel at detailed tasks including sharpening tools, smoothing edges, and removing burrs. Reviewers highlight its ability to produce clean, shiny finishes with minimal effort and access tight spaces. Many note outstanding value for the price and express intent to repurchase. A few mention minor inconsistencies, though most consider it highly reliable and worthwhile.

Customer review summary generated by AI, including incentivized reviews.
115 Customer Reviews

Handy

Would Recommend

Nice little file i used to do a hole range of side work but know it's just for me and my family this is just the right size to keep in the bucket to have with you all the time.

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Kobalt 6-Inch smooth is a dual-faced handy file

Would Recommend

The Kobalt 6-Inch smooth file is dual-faced with a single-cut pattern on one side, and double-cut on the other for multi-purpose use This is a small handy file for fine work like: cleaning up thread lead end putting edge back on scrapers, cleaning up jaws on my adjustable wrench or dressing end of my chisel. The files hardness is good there was no dulling after filing tool steel and having single and double cut on opposite sides allowed switching quickly from coarse to fine cut

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A Handy Little File

Would Recommend

I used my new 6" Kobalt file last night to clean up some rusty hardware, and what a nice job it did. You can see from the pictures provided the before and after results. The file is sized for small jobs. It cuts very nicely and leaves a smooth, shiny finish on steel with no effort. I happened to have a spare wooden handle that fit just right, making the file more comfortable to use.

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You know it's a good file.....

Would Recommend

You know it's a good file when The Husband took one look at it when I pulled it out of the package and has asked about it nearly a dozen times. I have a feeling I might "lose" this file to his ski bag. The file itself is fairly fine, which it great for finish work. Size is good, and I included some photos with a measuring tape next to the file for reference.

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6" Single-cut Smooth Tooth Mill file

Would Recommend

I received a 6" single-cut Smooth Tooth Mill file. Files come is several grades ranging from smooth, second cut, b***, and course. This is a rather small file, which makes it easy to use for small jobs. It produced a clean, smooth finish on a cast iron part I was working on. The teeth are easy to clean with a wire file brush. I didn't like the packaging that included some sort of plastic wrap that was difficult to remove. On the plus side, the packaging indicates the file has a lifetime wa...

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Great add to my toolbox!

Would Recommend

Received the product but it was not the "advertized" file, it was a "fine tooth" file. I needed a fine tooth file so this worked out for me. The overall working length of 5" was great and I liked that the sides of the file also had teeth cut into it allowing use in narrow spaces. One drawback was that the file did not have any tang protection (required to use on a drill press or lathe). I installed my own tang protector and it works great. Thank You!

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Nice little fine file

Would Recommend

I was looking for a smaller fine file to add to my collection. This one fits my needs. I tried it out on aluminum, PVC and steel. The latter was a bolt that I cut off with a hack saw. I used the file to dress the cut and threads. It worked great on all three materials. It is very fine. So, I recommend buying a file card to keep it clean.

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Top quality, handy little file

Would Recommend

This is handly little 6" Mill cut file. It's a pocket sized file that you can quickly use to knock off burrs, clean up an chisel or blade edge, or shaping small wood pieces. Very handy for small work (small carvings) This one cuts well (but not meant for heavy material removal). The teeth are holding up well with a few days use as a metal edge burr remover. Can't go wrong with this one. Did I mention it has the standard Kobalt hassle-free lifetime guarantee!

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Quality Metal File

Would Recommend

I used this file to smooth down the edge of a formica contertop endcap kit. The kit says to iron it on and file the excess. This file worked well and smoothed the edge nicely. See in pics below. File seems to be well made and has stayed sharp so far.

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Works like it should

Bast@rd Tooth, which is fun to say, works just like it should. And the packaging is not terribly annoying, as it often can be with products like this. I wish one side was a lot rougher than the other side, but it works great.

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Kolbalt 6 inch single cut file

Would Recommend

Kobalt 6-in Single-cut Tooth Mill File is a handy file to have around the house. Unlike the other larger coarse file I have this one at 6 in is prefect for everyday sharping and filing. I have used it mainly for tool sharping but it smooth enough to sharpen Kitchen tools as well. It comes with a convenient case to hang at the bench and also comes with a lifetime warranty.

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Spot on

Would Recommend

The product meets my expectations. It is exactly what I had in mind when ordering

December 12, 2022
From 10-in Single-cut Bastard Tooth Mill File Verified PurchaserIncentivized
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It works great now every time we open the door our

Would Recommend

The item worked. We had a little piece of metal hanging off our door and we bought it so we could grind it down.

October 23, 2022
From 6-in Single-cut Bastard Tooth Mill File Verified PurchaserIncentivized
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Wish it would come in a case

Would Recommend

Fits great in tool bag and good for what I need to be

October 19, 2022
From 6-in Single-cut Bastard Tooth Mill File Verified PurchaserVerified Pro Incentivized
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