The KT PRO A7102PR 90 teeth ratchet combination set with EVA foam storage tray, are designed to provide a smooth ratcheting action, with a 4 degree arc swing and a streamlined teardrop ratchet head, for easy fastener removal in confined spaces. Both ratchets C4364‐08P, C4464‐10P are made from high grade steel with a mirror polished finish for corrosion resistance that exceeds ANSI standards by 30%. Both drive sized ratchets, 3/8” & 1/2″ come with a patented rubber grip strip and backed by a life time warranty.