Crkt 14K Summit Series - Mt. Rainier - Sometimes your life depends on the tools you select—tools such as your pitons, ice axe, crampons and knife. Because climbers regard reaching the summits of the 14,000 ft. North American peaks as the pinnacle of achievement, we named this popular line the 14K Summit™ series. The Long's Peak and Mt. Rainier are the middle size of the series, with 2.875" blades. They are ideal utility knives, large enough to undertake serious cutting tasks.