Bottom Frame This item was sourced on www.MFG.com as one of the items in an RFQ in USA for Milling Production of a Bottom Frame. Supplier must quote all 21 RFQ's to be considered for awarding. Approximately 310.0 mm x 30.0 mm x 20.7 mm. Please see drawing for all specifications. Part Part Number: 1333998980603 Material: Alloy Steel Material Grade: 4140 Technical Specifications Category:Milling Dimensions310.0 x 30.0 x 20.7 mm Tolerance:0.03Annual Usage:20.0 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 Milling: Milling, CNC milling, or manual milling is the process used to produce prismatic components. A rotating cylindrical cutter with multiple flutes, commonly called an endmill, traverses along multiple axes to machine features such as slots, pockets and profiles. A machine tool used to perform milling is called a milling machine or the CNC version is often referred to as a machining center. Milling can be performed manually or under CNC control called CNC milling. Milling and CNC milling are performed by machine shops.