Professional stud remover for commercial or occasional use Stud remover / installer For removing or installing threaded stud in confined spaces Designed to remove difficult threaded studs or to also install them Suitable also for removing broken or seized bolts and studs Tool is designed to remove difficult threaded studs Knurled roller uses cam action to grasp stud firmly and minimize the damage to the item being removed / installed Cam rotates to grip onto the stud for quick and easy use Suitable for a wide number of heads including - head studs, main studs and carburettor studs Suitable for use with a 1/2" drive ratchet Suitable for studs from 5mm - 18mm