This guide highlights five highly capable blades that perform well on fiberglass, aluminum, plastics, and composites, helping you achieve clean edges with minimal chipping. The cost of a mismatched blade isn't just the price of the tool—it's the expense of ruined marine or automotive panels and the “annoyance”. How to cut Oglaend System Support Channels, Cable Ladders and Cable Trays. Oglaend System manufacture and deliver Multidiscipline modular bolted support systems, cable trays, cable ladders and accessories for complete installation and containment of Instrument, Electrical, Telecom, HVAC and Piping. Choosing the right Sawzall blade for fiberglass can greatly impact your project efficiency and finish quality. Below is a summary table of high-quality reciprocating saw blades designed to tackle fiberglass and similar materials, featuring durable construction, precise cutting teeth, and. After testing several options, I can confidently say that the Diablo 12″ Aluminum & Non-Ferrous Metal Saw Blade 120T excels in clean, precise cuts with minimal vibration and heat buildup. Carbide teeth, diamond grit, and bi-metal designs each offer different lifespans and cutting speeds.