Michael Cargile
Reviewed in the United States on January 9, 2025
This 'Dead Flat' piece of glass is laughably banana shaped. Bought this to tram a CNC router's spindle and was sadly disappointed. A thin piece of glass from a cheap picture frame is flatter than this thing. The picture frame glass was 0.002" out of flatness. This was 0.04". Returned.
Bob
Reviewed in the United States on January 8, 2025
My old grinder was starting to struggle when I was grinding venison. Rather than buy a new grinder, I sharpened the grinder plates and knife myself using this plate. I have not measured the plate for flatness other than eyeballing a straight edge over its surface. For my purposes it was more than flat enough.
Customer
Reviewed in the United States on January 31, 2025
Just what I needed to sharpen my grinder plate and blade.
Graham T.
Reviewed in Australia on July 22, 2024
It is perfectly flat great for sharpening and general use when you need a flat surface.
Chaosdsm
Reviewed in the United States on July 21, 2024
This is a must if you need an absolutely flat surface for lapping, and don't want to shell out for a granite surface plate. I Purchased this primarily for lapping duties, but also for knife sharpening from time to time. Had it checked on a milling machine and the dial indicator (+/- 0.001") did not move from zero once set on the glass!!!Weight is perfect, as it doesn't move on my silicone work pad. Although it's much larger than really needed.... I kind of wish I had gotten the larger plate so I could put 3 different grit silicon carbide papers on it at the same time.
Tom K.
Reviewed in the United States on March 24, 2024
I attached PSA sandpaper to it to sharpen woodshop edges. Chisels and plane anvils. Have a large collection that have been neglected for many years. Many had been sharpened on a grinder and needed to be reprofiled. Started doing it with a diamond plate but due to the number of blades and the wear it was putting on the plate, I needed a different solution. The glass plate with psa sandpaper worked great. Did require sandpaper changes fairly often as they are not as hard as the diamond plate.
Tony Reynolds
Reviewed in the United States on December 2, 2024
Very flat surface! Great for honing!!
David M
Reviewed in the United States on October 26, 2024
I thought I would only use this periodically for sharpening, but it hasn’t left my workbench since I got it. So many uses for a known dead-flat surface. I use it for glue-ups, for sanding of box tops and small parts… and any glue squeeze out easy scrapes off with a razor blade. Definitely glad I got it.
RandomGgames
Reviewed in the United States on July 16, 2022
Have yet to use this. Just arrived in the mail. Is indeed dead flat and dimensionally accurate, but had some minor scratches in it. I was hoping it would be perfect but for what this is described as being used for, it's not a big deal. Came with a non-slip mat as well for underneath which is perfect.