Helps Make a Really Tough Job Easier to Complete. Helps Beat the Flat Rate. Designed to remove broken exhaust manifold studs on 4.6L, 5.4L and 6.8L V10 2 valve and 3 valve Ford Triton engines without damaging the cylinder head. Interchangeable plates and alignment pins help center drill on the broken stud. Depth gauge for drilling is marked on the template. The stud extractor is then used to remove the broken stud. Available Individually: 68510 Base Plate for Ford, Blue 68530 2 Valve Adapter 68550 3 Valve Adapter 68590 Knurled Thumb Screw 68600 Nylon Washer 68630 Double Ended 1/8\" Drill Bit 68640 3/16\" Drill Bit 68670 Short Alignment Pin 68680 Long Alignment Pin 68690 Stud Extractor #2 WORKS ON 1996 TO PRESENT VEHICLES