Diameters of belt grooves 3-1/4 inches and 5.1/2 inches. Machines 29K71, 29K72 and 29K73, for stitching boots, shoes, and other tubular work in leather and fabrics, have the following characteristics: Single Needle, lock Stitch.Stop Motion Hand Whee1-releases hand wheel from stitching mechanism for bobbin winding. Eccentric Adjustment for Shuttle Timing. Universal Upper Feed for Stitching in any direction without turning the work. Stitch length: 7 to 15 to the inch, depending on material being stitched and operations performed. Presser Foot rise during feeding action: 1/4 inch -(Maximum clearance: 3/8 inch). Double End Needle Plate -(two sizes of needle holes at each end for various sizes of needles). The item "Singer 29K 72 LONGBED SHOE PATCHER SERVO INDUSTRIAL leather SEWING MACHINE table" is in sale since Monday, October 17, 2016. This item is in the category "Business & Industrial\Manufacturing & Metalworking\Textile & Apparel Equipment\Sewing Machines". The seller is "sfbfhair10" and is located in Long Island City, New York. This item can't be shipped, the buyer must pick up the item.