A thread chaser cleans the internally threaded holes in your engine block. To use a thread chaser is easy, you just run the tool through the holes and remove it, repeating this process until the threads are clean.
While it is similar to a tap, a thread chaser is different in that it is not meant to cut new threads, only clean the existing ones. It is important to clean out any debris such as old sealants, lubricants, gasket material, and anything else that could have fallen into the bolt holes in your engine block.
Performing this extra task will help give you peace of mind during engine assembly. Using a thread chaser allows you to ensure that the internally threaded bolt holes are clean.
Clean threads provide you with accurate torque values while torqueing fasteners in your engine build, or repair. Add this to your toolbox and use it with XDP head studs, OE-style bolts, and even studs from other brands.
