Columbia River Spear Ptcarson Flppzytel CRM16-01Z. This is the Columbia River CRM16-01Z knife, brought to you by hand-tools.com. It sports a 3 inch stainless steel blade, fashioned in a spear point shape – the ultimate dagger! Constructed usin AUS4 steel, it is a very tough steel, allowing it to retain its sharpness for longer periods of time.