Features and Benefits: Made from rugged, high carbon steel to handle the stress of removing bolts; Extractor size and recommended drill bit size are etched on each tool for easy identification; Ideal for soft materials or thin-walled pieces such as pipe and fittings; Will not expand soft material being removed resulting in easier removal; Able to remove left-hand bolts as well as right-hand bolts; Method of use: After drilling hole with either right or left-handed drill bit, (left is recommended) insert extractor, turn counter clockwise; Grips into sides of drill hole and removes broken part without damaging the threaded hole; Specs: Recommended tap wrench: TR-88; Use drill size: 9/64"; Removes bolts and screws: 3/16 - 5/16, 5mm - 8mm, No. 10; Carded;