Abstract: A workpiece trimmer power tool (eg. a laminate trimmer 10) has a waste collector attachment (26) for collecting dust and other waste material generated by the trimmer in use. The attachment can be fitted in a first position (FIG. 2) adjacent to an edge of the trimmer base (12) adapted for trimming a workpiece face, or in a second position (FIG. 5) adjacent to the underside of the trimmer base (12) adapted for trimming an edge surface of a workpiece. The attachment (26) provides a handle surface, also a guard surface and a fence surface for controlling edge trimming. Skis can be attached to the trimmer base (12) for face trimming.