The Deli Tools flat screwdriver, model DL6270081, is a professional-grade tool engineered for heavy-duty tasks requiring extra torque. It features a unique pass-through shank design, allowing for the use of an external wrench to provide increased leverage when loosening tight fasteners. Crafted from high-quality Chromium-Vanadium (Cr-V) steel, the 320mm shaft offers exceptional hardness, durability, and corrosion resistance. The hexagonal shank improves control, while the ergonomic, non-slip handle made of a rubber and plastic blend ensures a comfortable, secure grip, even in oily or greasy conditions.