Sucker rod wrench is a kind of tool designed to manually handling sucker rod. Our sucker rod wrench is made of high-strength alloy steel, which is hard and wear-resistant. The opening of our sucker rod wrench is fit for the four sides of API 11B sucker rod wrench flat. The applicable API 11B sucker rod sizes include 5/8", 3/4", 7/8", 1" and 1-1/8".