Cordless Electric: Powered by rechargeable lithium-ion batteries (commonly 18V or higher), offering maximum portability for field and roadside work.
Pneumatic (Air): Driven by compressed air; the industry standard for auto repair shops due to high power-to-weight ratios and continuous duty cycles.
Corded Electric & Hydraulic: Used for specialized heavy industrial applications requiring steady wired power or extreme high-pressure fluid force.