Use Snap-on's Video Inspection Scope, No. BK5500, to take a closer look and learn exactly what needs to be done. Use the scope for engine, A/C, under-dash, suspension and transmission work. The BK5500 includes a 8.5 mm diameter imager head that fits into most spark plug holes, a 36" long obedient shaft for added reach and a 75" shaft bend radius for great flexibility. The scope offers a 2.45" color LCD screen with 320x240 display resolution, and 720x480 imager resolution through a video-out jack.