side of the rib 38 this assures that the nose cover 34 is tightly engaged to the nosepiece 28 to unlock the nose cover 34 the latch tab 40 is urged away from the nose cover 34 this in turn disengages the latch wire 42 from the hooks 32 thus allowing the nose cover 34 to pivot about the pin connection 36 away from the nosepiece 28 in the unlocked position an operator may then clear any nail jams within the nosepiece assembly 22 turning now to fig4 a driver retention feature will be described the nosepiece 28 includes a groove 50 formed therein that cooperates with the nose cover 34 when the nose cover 34 is in its locked position to form a channel 52 the channel 52 is sized to receive a nail 53 from the magazine 24 a driver blade 54 extends from the housing 14 into the channel 52 the driver blade 54 is driven by the motor and nail driver mechanism not shown and engages the head of the nail 53 to drive the nail 53 through the nosepiece 28 and out of the nailer 12 however when the nose cover 34 is in its unlocked position shown in dashed lines in fig4 the driver blade 54 may escape the groove 50 accordingly the nose cover 34 includes a cam portion 56 best seen in fig2 formed at an end thereof on an opposite side of the pin connection 36 as the nose cover 34 is moved to its unlocked position the cam portion 56 engages the driver blade 54 thereby constraining the driver blade 54 to the groove 50 and preventing the.