This 2-piece screwdriver set is an essential tool kit for sewing machine maintenance and adjustments. The set includes a large 4-inch screwdriver with a 3/16" tip for general machine adjustments and a smaller 3-inch screwdriver with a 1/8" tip specifically designed for precision work like adjusting bobbin case tension. These specialized screwdrivers help you maintain optimal machine performance and make necessary adjustments without damaging delicate parts. Specifications: Part Number: 1304 Quantity: 2 screwdrivers per set Large screwdriver: 4 inches long with 3/16" tip Small screwdriver: 3 inches long with 1/8" tip Function: Machine adjustments and bobbin case tension Universal Compatibility: Works with all sewing machine brands and models including Singer, Kenmore, Pfaff, Viking, Necchi, White, New Home, Elna, Brother, Janome, and more. Essential for vintage and modern machines alike. Common Uses: Adjusting bobbin case tension, removing and installing needle plates, tightening loose screws, general machine maintenance, and making precision adjustments to ensure optimal stitch quality.
