Tacsew T146RB-For sewing medium to heavy-weight fabrics that are difficult to feed when sewn. For such materials and products as wet suits, shoes, boots, leather, tarpaulinsBest used for:. Sails. Bags. Leather, canvas. Synthetic textilesFeatures:. Rotary take-off mechanism for even thread tension. Built-in bobbin winder. Automatic lubrication with pump. Japanese Hirose brand sewing hook. Low noise, low vibration design. 2,500 rpm high-speed operation. Stitch dial regulator. Reverse lever mechansim.