Designed for inflating tyres and air locker activation when used in conjunction with optional accessories. Suitable for many air tools when used in conjunction with a 4L air tank (optional with on-board models).  100% duty cycle.  Sealed for moisture and dust resistance.  Hard anodized cylinder bores for reduced friction.  Teflon impregnated carbon fiber piston seals for maximum trouble free life.  Anodized mounting bracket dissipates heat.  Integrated pressure switch, relays and IP55 (waterproof/dust proof) brush-less fan cools electronics, motors and cylinder heads.  Over-pressure safety valve equipped.