Quality blades: the blade is made of manganese steel, strong and sharp, easy to cut, save time and effort, the top back of the cutter is equipped with a file, available to remove burrs, so that the cut is flat and smooth Appropriate design: In addition to the knife comes with a blade, the file also comes with a blade, non-slip pattern threaded handle, in line with the ergonomic design, easy and convenient e Use: the cutter will be cut in the appropriate position of the corrugated tube, turn the knife into the knife adjustment knob, so that the cutter can be easily adjusted in the rotation of the cut tube, can be rotated more easily, as appropriately not too tight to avoid losing the blade of the cutter, which depends on the life of the cutter Cutting performance: the use of high-strength thickened forged cast steel, not easy to rust, durable and not easy to damage, long service life knife wheel blade total heat treatment, high hardness, good toughness, clean cut International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.