Hi.
I've just seen it being demonstrated here
https://www.youtube.com/watch?v=T1YdgNiRBos
What I like about this tool is you can cut out a section of outer insulation with relative ease.
I didn't know about the flick hook which comes out of the base of the tool, which is shown in the demo.
I looked at the replacement blades but they seem quite pricey. I might try redressing the existing blade first.
Regards
Symon.