For sale is a Magna-Lock Model HL-612 Fine-Line Electromagnetic Chuck, Serial No.104972. 6" (F to B) X 12" (L to R) Top surface. 2.98" Height (as close as I can measure). 0.25 Amps at 230VDC current draw. Made in USA. This electro-magnetic chuck appears to be in very good condition. There are no gouges or visible dents in the top of the chuck, but there are one or two very small areas that might need to be dressed on your grinder to obtain a perfectly flat holding surface. Approximately 56 pounds net weight.