6003, 6803, 6903 & 17287 (17mm) Sealed Bearing ExtractorIndividual extractor for removing 6003, 6803, 6903 & 17287 sealed bearings with 17mm inside diameter. These bearing extractors grip the inside race of a sealed bearing, allowing the bearing to be tapped out of the hub shell or frame component. Insert the extractor into the bearing, tighten one side with a matching wrench, and the collet expands to grip the inside of the bearing. Tap the extractor & bearing out together with a punch and hammer. All