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Metal dust collection fittings are generally preferred because they safely dissipate static electricity when properly grounded, reducing the risk of fire or explosion. They are also more durable than plastic, resisting collapse and damage under high suction. Additionally, their smooth interior surfaces create less airflow resistance, improving overall dust extraction efficiency.
Spiral-crimped metal ducts offer exceptional durability and maintain a better seal over time. Unlike snap-together furnace fittings, spiral-crimped seams add strength and stiffness while minimizing air leaks.
When connecting flexible hose to machines, those with a metal spiral wire can be grounded by stripping back a section of the wire and attaching it to a metal fitting using a small metal screw. This helps complete the grounding path and enhances safety.
Check out the full line of premium quality metal fittings at Workshop Supply.
