Is it useful to hammer reverse function
Hammer: a safety clutch of electric rotary hammer with a pneumatic hammer drilling mechanism. Hammer is the use of compressed gas piston, impact drill bit, need not make much effort, can open 6--100mm in concrete, brick, stone and other hard materials on the hole hammer in the above-mentioned materials on the opening of high efficiency, but it is not a hole in the metal.
It is the reverse clockwise and counter clockwise, common in electric drill and electric hammer tool. For example, electric drill, screw, with positive turn, screw and reverse. With a positive reversal for the electric light electric hammer (such as BOSCH products), it is possible to install the adapter operation with the drill chuck, so with a positive reversal. Even if you drill with an alloy drill, you can easily reverse it if you get stuck.