Handles are available in 4 basic categories: H1 (light gauge), H2 (medium gauge), H3 (heavy gauge), and H4 (extra heavy gauge), and each size category comes with 20+ standard stock girth sizes available. The ratchet like action of the handle allows for speed and ease of use especially where clearance is limited in confined spaces and will not displace or damage piping. Each handle must be ordered based on size and torque ratings.