What is Mekuginuki in in Japanese Katana terminology?

"目釘抜き"  translates to "Mekugi-nuki" in English, which is a tool used to remove the Mekugi (peg) from a Japanese sword. The Mekugi is a small bamboo or metal peg that secures the sword blade to the handle (Tsuka). When you want to separate the blade from the handle for maintenance or inspection, you use the Mekugi-nuki to carefully remove this peg. It's a crucial tool for anyone who owns or maintains Japanese swords.