26 an upwardly open rearward channel 28 and an upwardly open transversely cut notch 30 intermediate the forward and rearward channels forward and rearward channels 26 and 28 both serve to guide and align cover 14 with respect to receiver 12 and hence to maintain contact holders 16 and 18 in proper alignment in addition press fit pivot pin 24 extends through rearward channel 28 to provide means for rearwardly pivotally attaching cover 14 to receiver 12 and forward channel 26 carries latch means 32 which cooperates with latch means 34 on cover 14 to selectively locate cover 34 in closed forward or closed rearward positions disposed at the rear of receiver 12 is lever 36 which is adapted in cooperation with lever 66 of cover 14 to facilitate manipulation of tool 10 to an open configuration for charging a contact into or removing a contact from tool 10 as viewed in fig1 lever 36 extends rearwardly and downwardly from body 38 of receiver 12 just forward of lever 36 is rearward channel 28 side walls 40 and 42 are spaced apart a distance just great enough to allow the width of cover 14 to fit therebetween and press fit pin 24 extends through.