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I've always wanted a Jonard tool after using them for a long time at work. I got this one and it really struggled with slicing PVC fiber jackets with it. I took it to the local electrical supply guy and after comparing it to his stock we are both convinced this is either counterfeit or factory 2nd. To be fair, it works great on SO/SOJ cable with rubber jacket.
Probably in the top 5 worst midspan tools you can buy. You're better off using a hook blade than this tool. I do midspans on the regular and I would never recommend buying this. Dual blade, blade swirls around the cable creating a spiral cut instead of straight line in a 360 rotation. It's garbage. Go to home depot and buy a Milwaukee knife that can hold hook blades and straight blades. Cheaper and more reliable. (Do need some dexterity and experience to be successful with a blade.)