The Microtech UTX-70 is named for being 70% smaller than the Ultratech, The UTX-70 is the smallest dual action OTF automatic on the market today. This knife embodies the Microtech brand very well as it is impressively small super smooth and the lock up is tight, every part of the UTX-70 has been scaled down from the Ultratech fasteners, blade, pocket clip, are flawlessly fit and finished for this knifes size and conceal-ability.