Features and Benefits:3" Hollow Shaft Depth - Ideal for long bolts or threaded rod applications;Chrome Plated - Marine Grade Rust Protection;Deep well sockets - Drive multiple fasteners;Forged steel shanks provide longer life and more durability;Multiple ID Markings allow for quick tool identification on jobsite;Removes rusted and stripped bolts;Universal driver head fits 4X more fasteners;Wrench Ready HEX shanks deliver additional leverage;Milwaukee® Hollow shaft nut drivers feature universal driver heads which fit 4X more fasteners including: square, hex, 12 point & spline. Designed for maximum durability the wrench ready hex steel shanks are forged and chrome plated. Milwaukee nut drivers are designed for the jobsite and include Milwaukee's Limited Lifetime Warranty.