SK SKT45170 Professional 3/8-Inch Drive 7-3/4-Inch Reversible Ratchet &ndash; Corrosion Resistant, DIY Mechanic Tool. Durable Handheld Equipment Ratchet Handles: professional reversible ratchet with SuperKrome plating. Features triple tooth contact. Provides smooth ratcheting action with little back movement. Easy use tool. Ratchet wrench tightens or loosens nuts and bolts. Corrosion resistant and scratchproof Versatile Hardware Tool: widely used in general engineering industry and automobile production and servicing. Comes with hardened pawl and teeth for durability and long life Application: mechanical tool used for frequent cleaning, re-dressing to remove ferrous particles or contaminants. Used in industries like petroleum, chemical manufacturing, spray booth operations, marine industry and paper industry Mechanical Equipment: fully enclosed ratcheting mechanism easy to remove and replace. Features diamond knurled grip providing sure handling. Safety tool with chamfered ends that help lead the socket over fastener heads Ratchet Tools: jewelry-like finish. DIY mechanic tool offers better grip and reduced fastener rounding. Features quick release head and high strength