Clamp structure for an auxiliary handle attachment for a long-handled tool

A clamp assembly for an auxiliary handle attachment, comprising:

• a first clamp structure comprising:
• a first channel member comprising a first channel closed side along a tool axis to receive an elongated shaft of a tool along the tool axis;
• a first female member adjacent to the first channel member;
• a first male member arm that pivots about a body axis parallel to the tool axis;
• a T-handle pivot along the first male member arm to define an arm axis parallel to the tool axis;
• a threaded fastener that extends through the T-handle pivot;
• and
• a first wing nut mounted to the threaded fastener, the first male member arm pivotable about the body axis and the first wing nut pivotable about the arm axis such that the first wing nut is engageable with the first female member to clamp the first female member against the elongated shaft to clamp the elongated shaft against the first channel closed side.