About this item    A comprehensive, 9 piece wobble extension bar set.  Includes 1/4" Dr.  bar lengths: 50-100-225 mm; 3/8"Dr.  bar lengths: 75-150-225 mm ; 1/2"Dr.  bar lengths: 50-125-250 mm.     Integration of wobble bar feature allows off-center driving of sockets at up to 10° from center axis or at 0°.  Ideal for use in hard to reach areas.     Spring-loaded detent ball design keeps extensions securely latched to sockets.  Drive end has through-hole to lock onto drive tang.  Knurled bars for improved grip.     Manufactured from Chrome Vanadium Steel with a chrome mirror polished finish.  Presented in an EVA foam tray convenient for user storage and limiting packaging waste.