Jonard Tools' Utility Knife

Jonard Tools utility knife
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Jonard Tools’ UKN-3 heavy-duty utility knife has a push button that enables users to change blades without needing other tools. The blade locks in four different positions for maximum cutting efficiency, and it holds up to three extra blades inside the housing. There is a tethering hole at the bottom of the handle and it is compatible with most other standard utility knife blades.