Deep Socket Wrenches

socket wrenches
(Socket (Hinge Handle) Wrench) Combines an offset handle with a male drive piece that has a spring-loaded bearing to lock on various size sockets. They can be used at almost any angle since handles may be attached to the head by a jointed hinge device.
(socket wrench) a wrench with a handle onto which sockets of different sizes can be fitted
A socket wrench, more commonly referred to as a ratchet, is a type of wrench, or tightening tool, that uses separate, removable sockets to fit many different sizes of fittings and fasteners, most commonly nuts and bolts.
A ratchet tool with a series of detachable sockets for tightening and loosening nuts of different sizes

deep
Extending far down from the top or surface
Extending or situated far in or down from the outer edge or surface
the central and most intense or profound part; "in the deep of night"; "in the deep of winter"
(after a measurement and in questions) Extending a specified distance from the top, surface, or outer edge
relatively deep or strong; affecting one deeply; "a deep breath"; "a deep sigh"; "deep concentration"; "deep emotion"; "a deep trance"; "in a deep sleep"
deeply: to a great depth;far down; "dived deeply"; "dug deep"