Only the difference is that the old model A1898 could only accommodate the regular 58 degree blade while the new model A1898-2 can accommodate NT 30 degree blades B121. The yellow holder is exactly the same but the cartridge inside has been modified so it can accommodate 30 degree blade. NT's cartridge-type, 30-degree 9mm snap off blade knife has a professional quality ABS grip with smooth rounded edge to protect cutting surfaces from scratching. This snap off utility knife with 30-degree sharper point blade is the tool of choice for window film and vehicle graphic wraps.
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