24" Magnetic Backing best Support Plates for Lapidary Glass Diamond Flat Lap Grinder Disc

best This magnetic system makes changing from one grit to the next extremely easy, the magnetic base platen stays in place, while the support plates are quickly and easily changed during the grinding/polishing sequence. It can use with Iron or steel support plate except the Aluminium support lap(Plate).
Important!
(1) If aluminum or other Non-Ferris Backing Plate the adhesive sticker will permanently adhere to your Plate.
(2) If metal or iron master lap the non adhesive style is may be used.. The magnet will do its job holding firmly in place.