PROS: flexible arm helps to reach in corners and same time it stable and provide support.
can be use in severe bend.
fits in any standard magnetic screwdriver which has hex socket.
built quality is too good and it necessary to bear torque which applied by user,
average length

CONS:too costly, it should be around 500rs
require proper maintenance for smooth operation...
difficult to maintain, use WD40 spray. spray inner part of the external black covering.


buy if you really required .
i b...