ITEM NAME:1Pc Tube Cutter Nylon PVC PU Rubber Silicone Plastic Tube Pipe Hose Cutt_ Function: To properly seat your bowden cable, it is necessary to have a clean, square, end. Without it, there is a risk of oozing, or worse, clogging, in the hot end. This super sharp pipe cutter is the perfect tool to get a clean, square pipe cutout, every time. A stainless steel blade and spring are available. The housing is made of durable, durable plastic. There is no hole to the end, so you can attach it to a key ring, hang it on a necklace, etc. so you won't lose it. Fits 6mm pipe diameter. It can also be used to cut fibers. (Do not use as a wire cutter or a blade will be boring, however). We have also tested these for durability, and from a height of over 1 meter on a concrete floor without damage. Special, adapted to high-quality Teflon pipes 1 M PTFE tube Teflon tube for TL feeder 1.75mm filament ID number 1.9mm OD 4mm Please note: Only applies to 2WAY in 1WAY up TL feeder ID number 1.9mm OD 4mm Package List:1Pc Tube Cutter.To properly seat your bowden cable, it is necessary to have a clean, square, end. Without it, there is a risk of oozing, or worse, clogging, in the hot end. It can also be used to cut fibers. (Do not use as a wire cutter or a blade will be boring, however).