Available in handle lengths from 8–60 in., cast iron Series 50 features fully enclosed ratchet mechanism, while stamped steel Series 150, offering handles lengths from 10–15 ¼ in., has partially enclosed mechanism. Square socket sizes range from 5/8–4 ¼ in. for 50 Series and 5/8–1 5/8 in. for 150 Series, while hex sizes range from 5/8–9 1/8 in. for 50 Series and 5/8–1 5/8 in. for 150 Series. Equipped with quick release, Series 50QR enables users to change sockets with flick of thumb.
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