Premium-Grade 6pc Carbon Steel Needle File Set Soft Grip - Lifetime Warranty Excellent-quality tool set for shop, home or hobby filing, shaping, forming, material removal Milled blades of hardened & tempered high-carbon steel for use on metals & wood Six different styles for superior versatility: half-round, round, flat, square, flat taper & triangular Comfortable soft PVC grips allow firm hold even with wet hands; 6" length, blade widths 3.0 - 5.0mm