Alfa Tools HSMTB72018 4.5 x 0.50 mm HSS Bottoming Metric Tap

Hand Tap Metric Special Thread, 4.5mm x 0.50 Tap Size, Bottoming Style, High Speed Steel, Ground Thread, Import, Ground Thread, Right Hand, 1 per Pack. Alfa Tools HSMTB72018 4.5 x 0.50 mm HSS Bottoming Metric Tap