KLEIN TOOLS 630-5/16M Hollow Shaft Nutdriver 5/16 in Handgrip, Magnetic

Nut driver magnetic tip and hollow shank with overall length 6-3/4'' (171 mm), shank length 3'' (76 mm) and hex size 5/16''. Weight (lbs.) .20. Color code: yellow. Exclusive hollow shaft design with Rare Earth magnetic tip features unobstructed pass-through, even on long bolts. Hollow shaft facilitates work on bolt applications.Cushion-Grip handle allows for greater torque and comfort. Handle end is color-coded for easy identification. Internal flanges provide solid, twist-resistant shank anchor.