This Magnetic Nut Driver set from Klein Tools features two of the most frequently used nut driver sizes. They feature full 6-Inch (15 cm) hollow shafts that fit easily over extra-long bolts and studs. The handle end is also color coded to easily identify the nut drivers in a tool bag or pouch.Features Color-coded for easy identification Color-Coded for Easy Identification Full-hollow shaft design with Rare-Earth magnetic tip facilitates work on bolt applications Handle end is color-coded for easy identification Internal flanges provide solid, twist-resistant shank anchor Tool Set includes general purpose selection of the most frequently used nut drivers (Cat. Nos. 646-1/4M and 646-5/16M) Made in USA Cushion-Grip™ handle allows for greater torque and comfort Warnings Always wear approved eye protection. NOT insulated. Will NOT protect against electrical shock. Set Type: 2-Piece Shaft Length: 6 in (15.2 cm) Overall Length: 9.75 in (24.8 cm) Size Name: 2-Piece Weight: 0.5 lbs Drive Size: 1/4 in, 5/16 in Handle Type: Cushion Grip Material: Rare Earth Magnetic Tip, Chrome-Plated Shaft Design: Full hollow shaft Color Coding: Yes Insulated: No Measurement Standard: SAE Country of Origin: United States DownloadsSpec Sheet