[Wide 50cm (19.6in) and 70cm (27.5in) Spatula]The larger planar area covers more per pass. Running at 14.5m/s with 1800W, this spray flatting saw and spray foam flatting knife accelerates edge-polishing. It handles large insulation areas on pavers and walkways efficiently [Applications of Open Cell Foam Planer Saw]: Suitable for sound insulation PVC materials in buildings, as well as cushions, sponges, sealing strips (requiring breathability), filters, and certain sound-absorbing materials. PVC foam pores are soft, elastic, and easily compressed, making them suitable for use with an open cell file. [Applications of Closed Cell Foam Trimmer]: Suitable for building insulation foam, thermal insulation materials, buoyancy materials, rigid packaging, and certain structural components. For harder, denser foams, a closed cell file is recommended. [Smooths Polyurethane Wall Surfaces]The foam planer insulation trimmer tool eliminates uneven, messy coatings on walls. It trims edges quicker than hand tools, reducing follow-up work for garden tiles. The design makes spray foam flatting faster and neater for final finishes [Simple Design]The spray foam flatting gun has a rotating head that sits directly on the stud. This minimizes effort and maximizes precision. As a spray foam flatting saw blade, it cuts flush without overcutting, making it ideal for tile and brick preparation