Exactly what I was looking for, and delivery was quick. - David S.

Great product and always exceptional customer service. - Thomas D.

Quick shipment, great packaging. Item arrived in great shape. Used it once already to insure flatness of a Starrett precision level, and was a huge difference when I calibrated it. - Dennis H.

Great transaction. I like the good communication with PFG, the attention to details and the stickers they include with the shipping! These little stones are awesome and very handy. - Jorge M.

As always FIRST class service......thank you Spencer! - Roy K.

I'm a newbie to grinding and Kinetic Precision and all the wonderful tools they sell, including this incredibly priced balancing stand, make it super easy to get started. This balancing stand is so smooth and sensitive. It works wonders! - Elliot L.

These things are more valuable than I thought they would be. I immediately knocked down some burrs on my machine table and vise that I never noticed and couldn't easily see. And they don't leave scratches. Plus you get a nice feeling inside when you rub them together and they do their thing :-) I highly recommend them! - Matt I.

Great product, and great customer service with the special shipping / delivery needs that I had with the package coming to my shop. I ordered a pair of the 8-inch stones after my experience with getting the 4-inch stones, and I had the same great experience. If you need to repair / maintain precision machined surfaces then I highly recommend this product. - David C.

Awesome Stones! Get Flat Stay Flat! - Devin S.

Purchased online, and the process was easy and quick. I received the stones very quickly, and have had the opportunity to use them several times. - KD

Very nice quality. Good company to deal with. - David L.

Great product and quick shipping! Loved the hand written note, it shows commitment and dedication to the customer and the product. The stones are nice but, of course, I can’t measure if they are really as flat as stated, but I’m sure they are! - Bruce D.

Great product, fast shipping - Matt I.

Super fast delivery - and that was to the England! The stones look and feel super flat. A precision piece of kit. -John I.

Absolutely perfect, nice lil touch with shipment. I think the handwritten note is a nice personal touch. Buy from PFG! - Scott D.

Unreal to use. So cool. Spelled correctly! [custom PFG Stone marking] - Chris D.

Top notch product and customer service. The included hand written note with the package is a nice touch. I will definitely be back for more from Kinetic Precision. - Luke F.

Finding all my imperfections! - Tom B.

Fantastic stones! I measured them on my surface plate and was impressed to find the parallelism was measuring to be .00004”. I did notice that one corner did not clean up or was chipped. However, the corner low spot was only .1” in and did not impact the functionality of the stone whatsoever. very quick shipping from the time of order. Over all I am very happy with the stones. Compared to professional instruments, they are less than half the price and very close to the same parallelism. Also, thank you for the hand written note and stickers! The effort that goes into hand writing each customer a note does not go unnoticed! - Zachary S.

These balancing rings make it really easy to balance my grinding wheels. You can add small set screws or large and it makes a huge difference. I have other balancing methods that give infinite range, which makes it overwhelming. This simplifies the job, yet retains the accuracy needed. - Elliot L.

Product does what is claimed. Lets you clean up burrs on your tooling and workholding and inspection stuff without creating new scratches. I got this size because I only had budget for one size and these were not the smallest. That being said having a larger size might be ideal for cleaning up machine tables. - Will A.

Amazing product, don't know how I have got this far without them. Will be ordering a bigger set. - Ronald H.

Worked great for dressing my diamond wheel. - Brian U.

Great stones, extremely well packaged! - Thomas D.

Stones are exactly what I needed and work perfectly. - Thomas H.

A very good buying experience. The product is exactly what I needed and expected. The lettering is clean and crisp. I will will buy from these people again. - Perry W.

This is my second order and now own 3 sets of stones from the Minis to the 6” and cannot say enough good about these products. Quality is second to none and has brought my craft up another notch that I didn’t know I was missing. I use my stones daily on any precision flat surfaces. Spencer is extremely accommodating to any special wishes and is just a delight to do business with. I will forever be a customer and highly recommend his products to all fellow machinists I get the chance to. - Timothy B.

Beautiful product. Fast shipping. Thank you. -Robert C.

Fast shipping and superb quality. Really nice work! -Jeff L.

Very nice stones. I was able to find flaws in all my “flat surfaces right away”. Came extremely well packaged 👍🏻 highly recommended! -Jonny W.

Well made, fits well, works great! -James R.

Shipping time, communication, quality of product and its fit and function were all excellent! -James R.

Bought the 4x1-5/8 inch Stones. Worth every penny. Will make it easier to keep my mill vise accurate by giving me a way to remove any burrs or nicks from clamping parts, etc. Also, will help keep tools (like 1,2,3 blocks, etc) surfaces smooth. I purchased the storage case along with the stones. It helps protect the stones when not in use. -Gustavo A.

Best service possible. Packaged amazingly so that absolutely nothing could happen to the stones. KP stones are the best! -Thelma N.

Wonderful product - performs very well for my machine rebuild. -Alex B.

Simple ordering for a fantastic Noz! Out of the box and onto the machine without any issues what so ever. The clever design has improved the flow directly where i need it. -Phillip S.

Excellent product. It was great talking to Spencer for the correct stone for our application. Spencer is a honest guy with a funny character. Thanks Again! -Chris H.

As expected, super-high quality and they work awesome! I was really surprised at how smooth they are compared to out-of-the-box stones. -Mick D.

Great product. Prompt service, they arrived much sooner than expected. -Paul S.

Highest quality stones that anyone in our shop has ever used!! They are worth the investment. -Ian R.

Excellent product, great packaging, and fast shipping. What more can I say. When ordering online that’s all can you ask for. 10/10 would order again. -Matthew H.

These stones are super-flat, and I used them to remove any raised burrs on milling machine ways and milling machine tables. It is easy to feel the difference when all the burrs are gone, so no worries about cutting too much material. -John R.

Stones arrived quickly. Packing was good and everything arrived in perfect condition. Stones work well for deburring flat surfaces after machining. Also planning to use for deburring hand scraped ways on my lathe. -Steven W.

PFG Stones are the finest, and most important tool I own, because they impact on every other tool that my hands touch. I couldn't be happier to have PFG beveled stones, which profoundly change my time and errors when measuring, and even when scraping machine ways. -Isaac L.

Very high quality product, fast service and a great resource of information. -Craig C.

Great product and service, will definitely be buying from here again. -Dan G.

Online order fulfilled same day. Upon arrival, one part was damaged in shipping. I contacted them with the box fill-in and they responded within an hour with replacement instructions. New replacement part arrived within a few days as they shipped out same day. Thank you for the excellent customer service! -Zoe M.