Everything that makes a work area function rather than merely exist. The LR 32 system drills shelf-support holes on a repeating 32 mm pitch in 5 or 3 mm, using a router on a drilled guide rail in 1400 or 2424 mm, set to a fixed clearance from the board edge — the difference between a cabinet whose shelves line up and one whose don't. Guide rail adapters bring routers onto the rail system; parallel fences, cross-cut rails, stops and combination bevels handle the angles you would otherwise mark by hand. The rest is the working environment. Boom arms lift hose and cable clear of the workpiece instead of dragging them across it. Earplugs come in graded attenuations rather than one-size-fits-all. Turbo filters, extraction sleeves, plug it cabling and site radios fill in the parts of a workspace nobody specifies until they are missing.
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