Calibration bloc This RFQ was sourced on www.MFG.com in CANADA for Tumble Finishing calibration bloc, investment casting stainless bloc 4.5" x4.5" x3". ONLY tumble finishing quote is requested. Buyer Information Industry City/Region montreal, Quebec Country CANADA RFQ RFQ Number 326088 Material Material Grade SS 17-4ph H900 Technical Specifications Category Tumble Finishing 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 Tumble Finishing: Tumble finishing is a mechanical process of deburring, cleaning and polishing parts. Tumblers are commonly barrels or cylinders that rotate, vibrate or spin parts that are contained inside of them.