Crescent AC112BK Adjustable Wrench with Plated Finish, 12-Inch Wide capacity jaw allows each tool to work with more fastener sizes-1-1/2 Inch Jaw Opening Wider handle provides more comfort and less stress to the hand Tension spring stabilizes jaw and knurl adjusts easily Proportioned dimensions for greatest strength and minimum weight Alloy steel and heat treated, Chrome plated finish resists rust and corrosion, Polished head and regular, satin finished handle