Piston This RFQ was sourced on www.MFG.com in USA for Lapping Finishing of a piston. Please see drawing for specific dimensions. Provide finishing service on Spherical ball feature. Surface finish requires lapping. Buyer Information Industry Engineering and Design City/Region Stephentown, New York Country USA RFQ RFQ Number 356996 Material Alloy Steel Material Grade AISI 8620 Technical Specifications Category Lapping Dimensions 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 Lapping: Lapping is a finishing process used to refine surfaces by making very flat surfaces very fine finishes. Lapping uses loose abrasives suspended in a fluid. In the lapping process, parts are processed between large flat plates or platens. Lapped surface finishes are measured in microns and nanometers.