![Newbie question. I think I remember reading that grinding discs have expiration dates on them im not sure if its true or not. I found some old discs my dad had from Newbie question. I think I remember reading that grinding discs have expiration dates on them im not sure if its true or not. I found some old discs my dad had from](https://i.redd.it/5l1fzshn4x691.jpg)
Newbie question. I think I remember reading that grinding discs have expiration dates on them im not sure if its true or not. I found some old discs my dad had from
![Dapetz ® Diamond Disc Mortar Raking Disc 115mm 4.5" Diamond Pointing Raker Disc Angle Grinder Blade Masonry Ideal for Grinding Crimped Mortar for ... Dapetz ® Diamond Disc Mortar Raking Disc 115mm 4.5" Diamond Pointing Raker Disc Angle Grinder Blade Masonry Ideal for Grinding Crimped Mortar for ...](https://m.media-amazon.com/images/I/61Di+R11YyL._AC_UF1000,1000_QL80_.jpg)
Dapetz ® Diamond Disc Mortar Raking Disc 115mm 4.5" Diamond Pointing Raker Disc Angle Grinder Blade Masonry Ideal for Grinding Crimped Mortar for ...
![Kays Fasteners Mortar Raking Disc 115Mm 4.1/2" Diamond Pointing Raker Blade Angle Grinder Wheel : Amazon.co.uk: DIY & Tools Kays Fasteners Mortar Raking Disc 115Mm 4.1/2" Diamond Pointing Raker Blade Angle Grinder Wheel : Amazon.co.uk: DIY & Tools](https://m.media-amazon.com/images/I/51wdLvHoQDL._AC_UF894,1000_QL80_.jpg)
Kays Fasteners Mortar Raking Disc 115Mm 4.1/2" Diamond Pointing Raker Blade Angle Grinder Wheel : Amazon.co.uk: DIY & Tools
![Dapetz ® Diamond Disc Mortar Raking Disc 115mm 4.5" Diamond Pointing Raker Disc Angle Grinder Blade Masonry Ideal for Grinding Crimped Mortar for ... Dapetz ® Diamond Disc Mortar Raking Disc 115mm 4.5" Diamond Pointing Raker Disc Angle Grinder Blade Masonry Ideal for Grinding Crimped Mortar for ...](https://m.media-amazon.com/images/I/813eNu9CGYL._AC_UF1000,1000_QL80_.jpg)
Dapetz ® Diamond Disc Mortar Raking Disc 115mm 4.5" Diamond Pointing Raker Disc Angle Grinder Blade Masonry Ideal for Grinding Crimped Mortar for ...
![Safety PSA. Grinding and cutting discs have expiration dates. Do NOT use expired discs. They are basically shrapnel grenades on an unknown length fuse. : r/Justrolledintotheshop Safety PSA. Grinding and cutting discs have expiration dates. Do NOT use expired discs. They are basically shrapnel grenades on an unknown length fuse. : r/Justrolledintotheshop](https://i.redd.it/3xzqc1qsdie71.jpg)