Cutters, guide rails and fences for the carpentry circular saw. The planing and milling sets are what extend it past cutting: fitted with them, the saw dimensions and grooves structural timber rather than only crossing it. Reversible carbide blades and pre-cutters are consumable and stocked separately — in framing timber, which carries grit and the occasional nail, an edge doesn't last long. Long guide rails at 2 and 3 metres carry a cut across a full beam in one pass instead of marking round it.
Compare products and choose the right one for your work.