1/2" 2.5° Nano-Ratchet (1) NR12 2.5° 1/2 Drive Nano-Ratchet provides minimal Swing Angle, Maximum Control.Tech-Friendly Ratchet for Everyday Tightening and Loosening Applications.Dual pawl with minimal 2.5° swing angle.Excellent for use in tight spaces and one-handed operation.Matte finish helps provide secure grip.Made of Chrome Vanadium for improved durability and corrosion resistance.Available as part as part of the NR3 3-Piece 2.5° Nano-Ratchet Set :NR14(1/4 drive), NR38(3/8 drive) and NR12(1/2 drive) NR12