Product Info Catalog Tools Hand Screwdrivers & Nut Drivers T27 x 4-In. Round Torx Screwdriver T27 x 4-In. Round Torx Screwdriver Request a Quote UPC: 52088879221 SKU: 103596 Model Number: 103596 Master Mechanic T27x4" round Torx screwdriver. Cellulose Acetate Handle, Clear Transparent with Black Inlay Stripe. Designed for dependability. High grade alloy steel blades, heat treated for superior strength Rugged, impact and chemical resistant cellulose acetate handle Ergonomic 6-flute handle design for comfort and maximum turning power Durable plating for corrosion resistance