Features: Precisions engineered for door hinge installation, this HSS drill bit ensures accurate 9-10cm/3.54''-3.97'' holes in wood and composite materials with exceptional durability. Crafted from wear resistant high speed steel (HSS), the lightweight 137g design minimizes fatigue during extended use while maintaining sharpness cutting edges. Ideal for woodworkers, professional installers, and DIY enthusiasts seeking reliable tool for hinge replacement or furniture assembly projects. Perfect for home renovations, cabinet installations, and door adjustments where precise hinge alignment is critical for smooth operation. Streamlines your workflow with this practical tool suitable for standard drills, delivering clean boreholes for seamless hinge integration in wood materials. Specifications: Component:High Speed Steel Applicable hinge size: 9-10cm/3.54''-3.97'' Package Includes: 1Set Hinge Drill Bit note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.