There are no engravings, grind marks, or any other non-factory markings on these tools. P lease look at my other items for sale.The item "NEW Snap-on 25 Piece Metric 1/2 Drive 6 Point Deep Impact Socket Set 325SIMM" is in sale since Sunday, August 23, 2020. This item is in the category "eBay Motors\Automotive Tools & Supplies\Hand Tools\Sockets & Socket Sets". The seller is "billygoldsborough" and is located in Tampa, Florida. This item can be shipped to United States.