Bought a pair of these a while ago & they are one of the best tools I've ever bought.
I realise Adam probably strips T&E with his teeth, but for those of us who don't these are fantastic.
Works on both flat T&E and round flex 0.2 - 6.0mm², so you can strip the outer insulation & then the conductors insulation - without any adjustment.
I've used these a lot & they show no signs of wear or falling apart - unlike some el cheapo's I've had in the past.
£12 well spent.