Columbia River’s M40 By Frank Karl Upon opening the package the first thing I noticed, aside from the good looks of the M40-03, is the large prominent, cross-hatched button at the knife’s pivot. This is the Deadbolt lock and it is quickly becoming my favorite locking mechanism. The Deadbolt lock was designed by Flavio Ikoma, the Brazilian knifemaker. Ikoma is one of those ‘overnight’ successes who started developing his skill more than 20 years ago. He started as an adolescent … Continue reading Columbia River’s M40