Feature: 1. Function: Bridge reamers are used to for Align existing holes before installing bolts or rivets. 2. Design: Tapered design allows access to overlapping holes. 3. Easy to Use: The short length is convenient for use in areas with limited access. Three symmetrically placed flats on the shank provide positive grip in portable for power and air tools. 4. Application: High-speed steel is suitable for various materials, such as aluminum, brass, bronze, cast iron, copper, iron, metal, nickel, plastic, steel. 5. Material: Excellent HSS material, fine workmanship, strong and. Specification: Certification: for CE Type: Bridge Reamer Model Number: Tapered Reamer Reamer diameter: 3/8" 1/2" 5/8" 3/4" 13/16" Shank diameter: 12.7mm(1/2inch),9.5mm(3/8inch) Material: HSS Overall length: about 78-180mm Package: 1*Bridge Reamer Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. 【Function】The bridge reamer bit is designed to for align existing holes before installing bolts or rivets, precise and accurate connections. 【Tapered Design】With its tapered design, this reamer bit allows easy access to overlapping holes, making it for various applications. 【Convenient and Easy to Use】The short length of this reamer bit makes it convenient to use in areas with limited access. Additionally, the three symmetrically placed flats on the shank provide a secure grip when used with portable power and air tools. 【Wide Application】Made from high-speed steel (HSS), this reamer bit is suitable for working with a wide range of materials, including aluminum, brass, bronze, cast iron, copper, metal, nickel, plastic, and steel. 【 for durable Construction】Crafted with excellent HSS material and fine workmanship, this bridge reamer bit is for durable and built to last.