Klein Tools 7-Piece Magnetic Tip Hollow-Shaft Nut Driver Set (3” Shaft, Part # 631M) – BRAND NEWKey Features: 7 piece magnetic tip hollow shaft nut driver set (includes sizes: 3 16 [no hollow shaft], 1 4, 5 16, 11 32, 3 8, 7 16, 1 2) Rare Earth magnetic tips for secure fastener retention and easier use on long bolts Full hollow shaft design (except 3 16") for work on long bolt applications Cushion Grip handles provide greater torque and comfort Colour coded handle ends for fast and easy tool identification Solid and twist resistant shaft anchor