QWORK® 4-Piece 1/4 Inch Hex Shank Drill Bit Extension Set 150mm & 300mm Extra Long Reach Extenders for Woodworking, Carpentry DIY Heavy Duty Spade with Dual Screw Lock

EXTENDED REACH DESIGN: Easily access hard-to-reach areas and deep holes with the 150mm (6") and 300mm (12") extensions, perfect for complex furniture assembly, cabinetry, and construction tasks. REINFORCED CARBON STEEL: Forged from industrial-grade carbon steel for maximum strength and reliability; the rust-resistant finish ensures long-term durability without bending or breaking under load. SECURE DUAL-SCREW LOCKING: Features a reinforced dual-screw fastening mechanism that holds your bits firmly in place, eliminating wobbling and providing superior accuracy during high-speed drilling. UNIVERSAL HEX SHANK: Specifically engineered to fit standard 1/4 inch hex shank bits, spade bits, and power drivers, making it a versatile tool for mechanics, homeowners, and professional woodworkers. COMPLETE 4-PIECE KIT: Includes one 150mm bar, one 300mm bar, and two matching L-shaped hex keys for quick bit changes; ensure set screws are fully tightened before operation for optimal safety.