The JET 402312 is a 5″ pneumatic angle grinder delivering 0.9 hp through a compact, lightweight body. It runs at 11 000 RPM, accepts standard 5/8″‑11 NC wheels, and includes a side handle, wheel guard and wrenches. The 360°‑swivel rear exhaust and spring‑loaded side valve reduce noise while protecting the tool from contaminants — built for heavy‑duty grinding on shop or job‑site metal work.