Feature Ford Engine Cam Tool Complete Combo Kit - Cam Phaser Locking Tool for Ford Rotunda 5.4L 4.6L 3V Timing Chain Locking Wedge Tool for Lincoln s, Explorer Ford Crankshaft Positioning Tool combination. Material:Made of hardened chrome molybdenum steel with long-lasting black oxide finish.Effective anti-rust/corrosion and deformation protection with strong toughness.Resist high and low temperature. Timing Chain Locking Wedge Tool With this timing chain tool,make it easily camshaft or cam phaser changes on your vehicle without losing chain tension and without removing the timing cover. .