Variable speed dial(500 ~ 3000/min) provides multiple speed setting for optimal cutting result. Blow-out design keeps cutting line-free of saw dust. Capacity wood : 65mm steel : 6mm. Electronic adjustment has several speed settings to achieve the best results during operation. https://www.industrywaala.com/product/stanley-sj45-in-450w-variable-speed-jigsaw-for-cutting-wood-sheet-metal-and-plastic-with-6-position-speed-dialyellow-and-black