Feature: 1. Brazed Reamer Bit: The step drill bit, undergone brazing, boasts high sharpness and wear resisting. Forged as a whole to achieve stable working and a long lifespan, offering efficient cutting and chip removal for a variety of applications 2. Versatile Applications: Offering efficient and accurate hole reaming, this multi layer tapered reamer features three different reaming sizes (20mm, 35mm, 50mm) to quickly and accurately enlarge holes, enhancing work efficiency 3. Diamond Abrasive: Equipped with diamond particles, this step chamferer ensures incisive cutting edges, facilitating rapid and accurate drilling through various materials. It achieves aggressive hole expansion and precise chamfering 4. Compatibility: Featuring a standard 14mm diameter thread on the shank, this reamer can be easily attached to 100 type angle grinders. A conversion rod is required for compatibility with handheld drill, ensuring adaptability to various power tools 5. Wet and Dry Use: Designed for both wet and dry drilling, this diamond brazed reamer bit offers users the flexibility and convenience to choose their preferred drilling method without compromising tool performance or lifespan 6. Applicable Materials: Suitable for edges processing on various hard surfaces, including concrete, tiles, marble, granite, quartzite, and glass stone, this step reamer is practical for both professionals and craft enthusiasts Specification: Item Type: Step Tapered Reamer Material: Alloy Steel, Diamond Use: For drilling ceramic tiles, marble, etc. Shank Thread: M14 Specifications: 20mm / 0.8in, 35mm / 1.4in, 50mm / 2in. Package List: 1 x Step Tapered Reamer 1 x Plastic Case