Features: Premium alloy steel construction ensures 40% long lifespans than standard screws, offering superior corrosion resistance and durability for electric screwdriver accessories and high strength screws. accuracy engineered thread ensures perfect compatibility with power tool, delivering secure fastening across wood, plastic, and concrete surfaces without slippage or stripping. Ideal for DIY enthusiasts and professional contractors requiring reliable fastener for frequent assembly/disassembly tasks in workshops or home improvement projects. Effortlessly handles demanding applications from furniture assembly to automotive repairs, making it essential for garage toolkit and construction site equipment. Organized storage solution included case with compartmentalized design keep screws sorted and portable for on the jobs efficiency and tool organization. Specifications: Materials: Alloy, Plastic Size:Approx. 12x9cm/4.72x3.54inches Type: Standard Edition/Deluxe Edition Package Includes: Expansion Tube X20 Screws X20 Hexagonal Sleeve X 5 Double-Head Screw Head X1 Black Twist Drill X 3 Coppers Twist Drill X 3 Silver Drill Bit X1 note: Please allow 1-3cm error due to manual measurement. please make sure you do not mind before you bid. Due to the differences between different monitors, the picture may not reflect the actual color the item.