Montana 4 in 1 Drill Driver Compact Modular Drill and Driver Montana travel The USA, North America Lonely Planet 10 Best Attractions to Visit in Montana Bozeman, Montana, Travel Guide This Is The Best Time To Visit Glacier National Park (With Tips). Multi function modular design Compact size for improved use and maneuverability Modular insert with rare earth neo magnet Locking collar secures tool 1 4" Non slip impact hex shank Strong fastener retention Fast and easy drilling and driver functions without re chucking Change from drill to drive mode with one hand Patented Montana Brand on board hex key allows drill bit, countersink and driver bit changes Magnetic driver bit tip provides a strong fastener retention Universally compatible with Impact Drill and Drill Driver NOT COMPATIBLE with Impact Drivers Montana Brand tools are manufactured utilizing high quality materials for durability and long tool life Made in the USA BLACK SCREW FITTING: #6 tight fit for 2" black screw #8 Regular fit for 2" black screw #10 Regular fit for 3" black screw #12 loose fit for 3" black screw