254 mm (10") Extension Rod for Forstner / Flat-Bottom Bits — G3/8 Hex Key benefits Extends drilling depth to 254 mm (about 10 inches), solving the common problem of not being able to reach deep workpieces with standard Forstner or flat-bottom bits. Lets you perform deeper mortises, hinge pockets, and recessed drilling without changing bits or stacking extensions. Sturdy construction minimizes bending or breakage during high-intensity woodworking tasks. Main features Length: 254 mm (approx. 10 inches) extension design increases effective drill depth. Interface: Standard G3/8 hex shank (six-sided) for secure connection and broad compatibility with common drill chucks and adapters. Bit compatibility: Designed for Forstner bits and flat-bottom bits of various sizes and specifications. Material: High-strength carbon steel with wear-resistant and corrosion-resistant surface treatment; good toughness and impact resistance for long-term use. Included accessories: Two fixing screws and a hex key (Allen wrench) to firmly secure the bit in the extension rod and ensure stable, safe operation. Performance and usability Easy to install: Standard G3/8 hex interface and included fasteners make attachment quick and reliable. Stable drilling: Secure clamping of the bit reduces wobble and improves hole accuracy when drilling deep. Durable for repeated use: Carbon steel construction and surface treatment protect against deformation, wear, and corrosion during extended projects. Typical applications Furniture making: Create deep hinge pockets, concealed fastener recesses, and through-thickness holes in thick boards. Cabinetry and carpentry: Drill deep forstner or flat-bottom holes for dowels, plugs, or hardware installation where standard bit length is insufficient. DIY and workshop work: Perform deep countersinks, recesses, and precise flat-bottom holes in shelving, doors, and assembled panels. What you get 254 mm extension rod with G3/8 hex interface Two fixing screws Hex key for tightening Compatibility and fit Fits standard G3/8 hex-compatible drills and accessories and accepts a range of Forstner and flat-bottom bit sizes. Easy to integrate into common electric drills and drill drivers. If you need reliable, deeper drilling for woodworking, furniture, or DIY projects, this carbon-steel G3/8 extension rod adds 254 mm of reach while keeping the bit secure and accurate.