Features: Professional drill bit extension set includes two 1/4" hexagonal shank extensions with heat treated hexagonal wrenches, optimized for precisions drilling in tight spaces and overhead applications. Crafted from stainless steel with knurled grip zones, this hexagonal shank extension systems boosts torques transfer by 30% while resisting rust and rotational wobble during heavy duty operations. Ideal for contractors, woodworkers, and enthusiasts requiring surgical accuracy for cabinet installations, plumbing repairs, or automotive maintenance tasks. Tackle deeply set screws and confined space drilling effortlessly with these antislip drill extension rods, suitable for most 1/4" hexagonal shank bits for secure fastening in ceilings, wall, and machinery. Engineered for durability, the heat treated drill bit extension set delivers good performances in workshop environments, construction sites, and home improvement projects requiring extended reach and vibrations control. Specifications: Component:Stainless Steel Length:Approx.15cm/5.91'',30cm/11.81'' Package Includes: 1Set Drill Bit Extension 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.