Perfect for flattening water stones. Not so perfect for rough shaperning of irons and chisels.
This lapping plate was received with a certificate of inspection. Not sure how they inspected, as I first noticed runout lengthwise (about 0.002”, not great but not a deal breaker). More importantly, after surfacing 400, 1000, and 3k grit stones, I could see large scratches in the stones. It appears that a clump of diamond particulate is about 1/4 the way up the plate. I could see sluff buildup on those spots, and the scratches in the stones correspond. After taking a look at the mfg website, it appears this may be a new startup, with 3rd party product inspection. Take a look at the site, it is full of weird marketing garble and even cites famous woodworkers as “Partners”, then says something like “unfortunately, these men don’t know about our product, unlike you”. Cheesy! I’ll be returning this and going a different direction for my stone lapping. Not a bad product at first glance, but a high pricepoint, cheesy marketing, and bad QC makes it a bad buy. $130 for an nonfunctional tool? Oops!
There were some high spots in the abrasive and they made deep scratches in the whetstone. I had to use $20 worth of abrasive sheets on my flattening glass to fix my stone.
"So, I have just received the Maxi-Smart Lapping plate, and I can honestly state that this is quite a fantastic tool for flattening different kinds of sharpening stones. I have just tested it on my “boys”: 400, 8k and 10k. The deal was done with a couple of passages, and the stones came in excellent condition. In my view, it seems as it has suitable coarseness even for more than 10k. Also, I was impressed with the really BIG size of the plate. The plate easily covered my whetstones. The tactical feel is light despite the dimensions. Even after flattening it looks flawless. There are no visible traces and scratches at all"