Tube This item was sourced on www.MFG.com as one of the items in an RFQ in USA for Honing 30.375 +/- .015 inch long x 4.000 +.010/-.000 O.D. x 3.75 +.006/-.000 I.D. Tube. The tube has a snap ring groove cut on one side of it (on I.D.). The tube has some straightness and position tolerances associated with it Part Part Number: 12255-802011213819-1 Material: Material Grade: 304 Stainless steel Technical Specifications Category:Honing Dimensions0.0 x 0.0 inch Annual Usage:26.0 Get quotes online for manufacturing services at MFG.com from machine shops, fabricators, job shops and contract manufacturers. MFG.com connects buyers and suppliers when the buyer has a need and the supplier has the right expertise and capacity. MFG.com analyzes all engineered parts and RFQs for improved manufacturability and to ensure quality and a quick quoting experience. Honing: Honing is a finishing operation performed on the inside of cylindrical shapes. Abrasive stones, sticks or brushes are arranged in a triangular shaped tool and fitted to the inside or bore of a cylinder. Honing is used for very slightly altering the surface, as in tightening dimensional tolerance, rather than removing material to substantially change the dimension.