Features: Engineered for precise, the U8S Alloy Sliding Thread Drill Bit Set features alloy steel design (thick for drilling, thin for extraction) to efficiently remove screws in phone repairs, combining durability with professional performances. With a compact 45mm/50mm length and 2.35mm shank, this corrosions resistant alloy steel set includes a grinding pen and grinding bits, ensuring ergonomic handling and organized portability for intricate repair tasks. Ideal for technicians and enthusiasts, this tool simplifies stubborn screw removal in smartphones, tablets, and small electronics, offering reliability for both professional workshops and home repair projects. Tackle or slippery screws during device disassembly, screen replacements, or component upgrades with the step by step drilling and extraction process. Suitable for removing or slippery screws. Specifications: Component: Alloy Steel Model: U8S Box Size:Approx.58x13mm/2.28x0.51inch Option Type:2pcs Sliding Thread Drill Bit,2pcs Sliding Thread Drill Bit with Grinder Pen +Bit; Product name: Sliding Thread Drill Bit Clamping: 2.35mm Product function: used to remove sliding thread screws; Package Includes: Package A 2pcs Sliding Thread Drill Bit Package B 2pcs Sliding Thread Drill Bit 1pc Grinder Pen 9pcs Grinding Bit note: Please allow 1-3cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color