1、Open‑end wrench come with light weight, one‑handed operation reduces operator fatigue 2、Both ends are available, very versatile. Adopt thicker design, the overall thickness is widened 3、Rotation can adjust the required specifications to reduce the difficulty of work, very practical 4、Alloy steel material have high strength, high toughness, wear resistance, corrosion resistance, low and high temperature resistance 5、The adjustable range of the big head opening is 11‑16mm, the adjustable range of the small head opening is 5‑11mm, and the thickness is 9mm Item Type: Open-End Wrench Material: Alloy steel Adjustable Range of Big Head Opening: Approx. 11 ~ 16mm / 0.4 ~ 0.6in Adjustable Range of Small Head Opening: Approx. 5 ~ 11mm / 0.2 ~ 0.4in Thickness: Approx. 9mm / 0.4in 1 x Open-End Wrench