✅ Made of 45# forged steel with full heat treatment, resistant to bending and deformation under high torque ✅ CNC precision machined for accurate camshaft positioning, prevent timing deviation and valve collision ✅ Black oxide anti-rust coating, oil & moisture resistant, long service life in greasy repair shops ✅ Custom molded hard storage case with separate slots, tidy storage and easy to carry ✅ Labor-saving locking design, fast camshaft fixing to improve repair efficiency ✅ Thickened positioning blocks & sturdy bolts, firm clamping without slipping during calibration ✅ Professional dedicated tool for auto shop engine overhaul and cylinder head maintenance ✅ Wear-resistant contact surface, stable performance after repeated disassembly work.