Ridgid R86007 18V Compact Lithium Ion Drill Integrated chuck and gearbox &#8211; allows for a more compact design 2-Speed transmission &#8211; for matching power to the task 1/2-Inch single sleeve chuck holds bits tight and secure Overmold handle &#8211; for secure grip and maximum user comfort Compact Lithium-Ion battery runs longer and power does not fade throughout the charge