●Width across flat: 0.2 inches (5 mm) ●Dimensions: Outer diameter 1.0 inches (25 mm) x total length 3.0 ●Weight: 3.4 oz (95 g) ●Drive: 1/2 inch (12.7 mm) for impact wrenches ●Compatible Pin Product Number: PIN3522S Compatible O-Ring Product Number: RINGP22AS *Comes in a plastic bag (10 pieces) ●Note: Please make sure the pins and O-rings are fixed to the correct size before using. Pins and O-rings are consumables. Replace worn or worn