Festool 561443 PS 300 EQ Jigsaw Carbide guidance system keeps the blade perpendicular to the shoe for improved cut results, even in thick stock. Zero clearance splinterguard are solid one-piece inserts that are cut with the blade mounted in the machine for a clean, splinter-free cut. Dust extraction channels integrated in the base plate coupled with a clear chip deflector a rear dust extraction port provide for cleaner work area. MMC electronics provide soft start to reduce start up jolts, variable speed to match the speed to the material, and constant speed under load. FastFix saw blade change allows for quick, tool-free blade changes. FastFix lever opens the chuck for easy blade insertion and removal. Dust Extraction Connector Diameter: 27 mm