Klein Tools 8-1/4 in. Self-Adjusting Wire Stripper and Cutter for 10-20 AWG, 12-22 AWG, 12/2 and 14/2 Romex Wire 11061 - The Home Depot
Ripley Miller 103-S Adjustable Wire Stripper with Spring & Stop
Klein Tools 74007 Adjustable Wire Stripper, Spring Loaded Stripper and Cutter for Solid and Stranded Wire with Finely Honed Nose - Wire Stripping Tool - Amazon.com
Self-Adjusting Wire Stripper - Lee Valley Tools
V-Notch Adjustable Wire Strippers (Ideal) 45-101
Self Adjusting Insulation Wire Stripper - Automatic Stripping Tool - Built in Wire Cutter, Pressure Adjustable, Length Stop - 0.25-2.5mm² Range - By Gee Gadgets - Amazon.com