Milwaukee 48-22-2524 3/8" x 3" Hollowcore/magnetic nut driver
Milwaukee® HollowCore™ 48-22-2507 Magnetic Nut Driver Set, 1/4 to 9/16 in, 7 Pieces, 7-1/4 to 7-1/2 in OAL, Cushion Grip Handle, Steel, Polished Chrome | State Electric
Milwaukee 48-22-2524 3/8" Nut Driver - Magnetic : Tools & Home Improvement - Amazon.com