Festool 490121 Jigsaw Splinter Guards, 20-Pack features solid one-piece, transparent splinterguards designed specifically for Festool jigsaws. These splinterguards ly match the inserted blade from the very first cut, creating a zero- insert that ensures precision cutting. By significantly improving cut quality and reducing tear-out, these guards help eliminate time-consuming rework, even when working with delicate materials like melamine. It is to use a new splinterguard with every new blade or when cut quality noticeably declines. Compatible with Festool PS300, PSB300, and CARVEX jigsaws, this pack includes 20 splinterguards to keep your cuts clean and accurate. Please note that the jigsaw blade is not included. Model Number: 490121