DEWALT DW317 Variable-Speed Orbital Jigsaw Keyless blade clamp allows for quick blade change without touching blade or reciprocating shaft 5.5 Amp motor deliver powerful cuts in the hardest materials Variable speed delivers 0 - 3,100 strokes per minute for optimal cutting speed 4-position orbital action allows for faster, more aggressive cuts in a variety of materials All-metal gear case provides superior durability on a professional site