An electric hair trimmer (100) generally includes a handle (102) housing a drive motor and a cutter head (200) releasably connectable to the handle. The cutter head includes a housing having an interior compartment, and a cutting assembly including a pair of cutting blades. At least one of the cutting blades is in operative connection with the drive motor upon connection of the cutter head (200) with the handle for reciprocating movement of the at least one of the blades. At least a portion of the cutting assembly is disposed within the housing, and the cutting assembly further has a front edge disposed exterior of the housing for trimming hair upon operation of the trimmer (100). The housing has a plurality of guard fingers at least in part wrapped over the front edge of the cutting assembly to inhibit the front edge against contacting a person's skin during hair trimming.