Neilsen Impact Drive Wheel Stud & Hub Rust Dirt Removal Cleaning Tool Set HGV Fit on an air, corded or cordless impact wrench with 1/2"D connection. To fit over most HGV wheel studs up to 28mm in diameter to a maximum of 80mm long. Contents Impact Drive locking sleeve, disc tightening and loosening adaptor and 6 abrasive discs: 50 x 12mm, 50 x 13mm, 50 x 14mm, 60 x 16mm, 60 x 22mm, 60 x 28mm.