Yes, it works well. But it's really only appropriate for fiber-optic size wiring, which I had missed in the description. My fault, not theirs. Don't have a lot of use for this particular item. It is less expensive to purchase as part of a full fiber-optics kit, but if you just need to replace this particular item, it's nice that you don't have to replace the whole ensemble. For the size and the fact that it's just a little plastic suitcase with blades, I think the price is outrageous. But so it seems to go with any kind of specialty tools and kits. C'est la vie.

The splitter works very well for it's intended purpose of splitting open buffer tubes for access to in-closed optical fibers. I also use it with success, to split the inner coat of cloth covered lamp cords = with is touchy to not cut away any fine inner wire of this reproduction cord for antique lamps. Doesn't come with instructions = and what seemed to be correct = was not. So = to open 1. With sizes up-wards. Lay the back hinge side on center of middle finger of left hand, and thumb on top the button to open = then press thumb towards the palm of the hand. 2. While holding that position = with right hand = grasp each side of the top front and push towards left hand. And I felt the arrow lacked appropriate instruction. = The section of the tube to be cut hangs out to the right of the point of the arrow, = pulling the main tube to the left. Again = this works well, however I'm not sure it's worth the premium price over a wide variety of fiber optic strippers pliers that cost less than half the price. Still = this is a good five star product, the reason for 4 stars is the $26.80 cost of replacement cartridge blade