Box-end wrench 33-xxx series

Made in the USA - Quality and Availability For Use Where a Hammer or Sledge is Required to Create Extreme Force / Torque Necessary to Loosen or Tighten Large Fasteners Large Striking Surface for More Efficient Hammer Contact, More Force Being Applied to the Fastener Straight Rectangular Handle Design Withstands Heavy Sledging, Resists Springing, Transmits Force More Effectively to the Fastener. Handle Length Permits Use in Confined Areas Box End Opening is Designed to Remain Engaged to the Fastener When the Wrench is Struck Heavy Box End Opening Provides Greater Transmission of Torque and More Strength While Also Providing Access to Confined Fasteners Manufactured From High Alloy Steel Using the Most Up-To-Date Manufacturing Process and Heat Treat for Greater Strength and Durability Meets or Exceeds US Federal Spec. GGG-W-636E