One key Lock and Release Button:Patented design of quick lock/release system not only helps you to change the attahcment quickly but also makes the connection of the attachments and base tool more stable and safety Drill : Chuck 13mm; Big Torque:45N.m;Two speeds mode(0 400Rmp/0 1600Rmp);22+1 adjustable clutch settings Reciprocating Saw with 15mm stroke length running at max 3500 spm.And its tool-free blade clamp allows for quick and easy blade removal or insertion Oscillating Saw with 3.2 oscillation Angel and no load speed 0-20000 OPM Jig Saw:no load speed 0-2600 rpm Sander:no load speed 0-10000rpm 2Ah battery with 1pcs quich charger packed in plastic case More accessories come with the attachments:They could help you to do various of jobs, such as drilling, screwing, cutting, scraping and sanding.