Spiral Drill This item was sourced on www.MFG.com as one of the items in an RFQ in USA for Reaming Tools Reaming of a spiral drill. Approximately 1.44" OD x 4.00" long. Please see drawing for dimension specifications. Carbide tipped or solid carbide. Part Part Number: 81-1323 Material: Other Material Grade: CARBIDE Technical Specifications Category:Reaming Tools Dimensions0.0 x 0.0 inch Annual Usage:4.0 The following suppliers (machine shops, fabricators, casters, molders, 3D printing, CNC machining, etc.) provide manufacturing services for the machine tool industry, automotive industry… For more information visit www.MFG.com. MFG.com analyzes all engineered parts and RFQs for improved manufacturability and to ensure quality and a quick quoting experience. Reaming Tools: Reaming is a process of enlarging, sizing or deburring the inside diameter of a previously drilled or bored hole. Reaming is commonly done to precisely dimension the inside diameter. Reaming is done with a reaming tool which consists of parallel cutting edges with either straight or helical edges.