disc insert This item was sourced on www.MFG.com as one of the items in an RFQ in USA for Coining Production of a disc insert. The buyer is looking for a metal disc in the size of 0.5" OD x .187" thickness. This is similiar to a washer but with out the hole in the center, just the complete disc. The grade of steel is not critical, just need it zinc plated. Part Part Number: d100 Material: Alloy Steel Material Grade: steel Technical Specifications Category:Coining Dimensions0.0 x 0.0 inch Annual Usage:200000.0 Are you looking for suppliers (machine shops, fabricators, casters, molders, 3D printing, CNC machining, etc.) to provide manufacturing services for machine tool industry, automotive industry? For more information visit MFG.com. MFG.com performs a 5-point inspection on all engineered parts and RFQs to ensure quality and enhance your online quoting experience Coining: Coining is a stamping process in which the metal is compressed in a closed die. The punch compression forces the metal to conform to the shape of the top and bottom die. This process is commonly used to produce coins, medallions, tokens and labels.