The RIDGID 1224 threading machine handles pipe from ¼″–4″ NPT with 36 RPM (¼″–2″) and 12 RPM (2½″–4″), and up to 6″ with optional geared threader. It threads black, galvanized, plastic‑coated, stainless steel, IMC, heavy‑wall conduit, and rod up to 30 Rc. The induction motor operates quietly, and through-head lubricates dies continuously. Features reversible control and hammer‑chuck design for precision threading.