Sears offers the Craftsman 3/8" Drive Mach Series Ratchet, model no. 44578, for $19.99. Opt for in-store pickup to dodge the $4.99 shipping fee. That's tied with our mention from last week, $30 off list, and the lowest price we've seen. It purportedly turns sockets 16 times more efficiently than a regular ratchet and has a swing arch of 60°.
Of note, Shop Your Way Rewards members will earn a Sears credit with this purchase and may be eligible for additional credits and discounts.
Update: The above price is now available for Shop Your Way Rewards members. (Not a member? It's free to join.)