Description: All-steel design for the higher durability. Beautifully precise ratcheting action for high quality work. Easy to carry, it can be operated freely in a small space For tap and extractor sizes from 1/8-Inch to 5/16-Inch Easy to use Specification: Material: High speed steel 4241 Color: Silver Size: Approx. 200mm*20mm / 7.87x0.79inch Tap type: Straight groove Package Includes: 1 Piece of Reamer Wrench Set (M3-M8 Screw Thread included)