Presses in the two inner cam bearings. Designed to press from letter side of the inner cam bearings by putting all the pushing pressure to the very outer wall of bearing shell. Eliminates any damage to the bearings, cam and cases. Stops at the case and sets the bearing depth to .023 to .028" below the case surface. A must use for the longest bearing and cam life. Use with P/N 495134 and 491842. Made in USA. Inner Cam Bearing Installer Tool