Configurable hand tool system with interchangeable work heads

A hand tool system comprising:

• a haft having a haft longitudinal axis;
• an offset-L component comprising a releasable first attachment means and a releasable second attachment means, the second attachment means oriented at about 90 degrees to the first attachment means;
• and
• a digging and cutting head comprising
• a blade, the blade comprising:
• a planar central panel in the shape of an obliquely truncated acute isosceles triangle, the base of the isosceles triangle defining a hoe tip;
• a right panel meeting the central panel at a bend having an angle of about 8 degrees and having a tip edge meeting the hoe tip at an angle of about 135 degrees, the tip edge and the hoe tip together defining a spade tip;
• and
• a left panel meeting the central panel at a bend having an angle of about 8 degrees and having a top edge defining a foot cleat;
• and
• a mount for releasably attaching the digging and cutting head to the haft or to the offset-L component, and defining a mount longitudinal axis,
• wherein the mount and blade are affixed one to another such that:
• the mount longitudinal axis lies within a plane substantially normal to, and substantially bisecting, the central panel isosceles triangle;
• and the mount longitudinal axis intersects the plane defined by the central panel at an angle of about 15 degrees;
• wherein, the haft, offset-L component, and digging and cutting head may be selectively releasably assembled:
• into a spade-like configuration, by attaching the first attachment means to an end of the haft and attaching the mount to the opposite end of the haft, and in which the second attachment means functions as a handle extending substantially perpendicular to the haft longitudinal axis and the haft is angled relative to the spade tip;
• or
• into a hoe-like configuration, by attaching the first attachment means to an end of the haft and attaching the mount to the second attachment means, and in which the hoe tip is substantially normal to a plane containing the haft longitudinal axis and the mount longitudinal axis.