Overview Product Description Extends drilling depth by 18 inches Welded, steel tube construction Nylon, secure locking collar Compatible with all ION® auger models Mounting hardware included Product Videos Custom Field Product Reviews Write a Review Write a Review × Ion Ion 18" Extention Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *