General description Economical 10pcs tool set includes 5 alloy steel screw extractors and 5 left-hand drill bits. The cobalt drill bit sets are made of high-quality material, ensuring durability and effectiveness in removing broken screws, studs, bolts, and other fittings. The spiral flutes on the screw extractors enhance grip as torque is applied, making them excellent for various applications. Technical specifications Material: Cobalt-reinforced high-speed steel Sizes of drill bits: 5/64, 7/64, 5/32, 1/4, 19/64 Sizes of extractors: #1, #2, #3, #4, #5 Product dimensions: 14.6 x 11.3 x 2.8 cm Product color: Gold Quantity: 10 pieces Compatibility and accessories Includes 5 alloy steel screw extractors Includes 5 left-hand drill bits Comes with a lightweight and durable metal carrying case for organization and storage Usage Ideal for removing broken screws, studs, bolts, and fittings Spiral flutes increase grip as torque is applied