For sale today is a "must have" tool for Norton Commando twins. This English made tool will allow you to remove your engine sprocket at ease. Replaces Norton part numbers 06-0941, 060941, 06-4297 & 064297. This engine sprocket puller tool can also be used on other Norton twins from the Atlas, Dominator, etc (excluding MK3).. Check your parts book to ensure the best fitment.