YiAndeli 20 Pcs Valve Seat Reamer & Grinding Wheel Set for Motorcycle 1.85 inch/47mm, Carbide yg8 & Artificial Diamond Cutters with Box

Durable construction: Manufactured from hard alloy yg8 and artificial diamond, this set is treated with sandblasting, deburring, and anti-rust oil soaking treatment to resist deformation and corrosion for long-lasting use. Powerful cutting and finishing: Four grinding tools deliver excellent cutting and grinding performance to swiftly machine valve seats to a mirror-like finish, improving valve sealing and helping enhance engine performance. Designed for motorcycles: This 20PC valve seat cutter set is made for motorcycle cylinders 1.85 inch/47mm and is a suitable choice for valve seat cutting and repair. User-friendly operation: The kit includes a grinding head; once the reamer is hinged/assembled the grinding process is straightforward. With a bit of practice you can achieve reliable, leak-free valve seats. Complete set: Contents include 12 reamers, 4 grinders, 2 toolbars, 1 toolbar stick, 1 screw, plus a storage box to keep all pieces organized.