Auger ExtensionINCREASE AUGER LENGTH EASILY AND QUICKLY Turn our 3' or 4' augers into 5' or 6" augers with this simple to use 24" Auger Extension. Great for sandy or granular soils or on slopes. and works well in most clay soils. Threads easily to other augers. Uses a M16 2. 0 thread. Rigid screw and bracket system allows auger to be retracted if necessary. Includes 24" extension tube, bracket and two 410 Stainless self drilling screws with 3 8" hex head.