Tool with self-locking grip, interchangeable head-pieces and clamp for fastening to the work bench

A tool with a self-locking grip and interchangeable head-pieces, comprising:

• a handle (1);
• a first gripping arm (2a), a second gripping arm (2b), and a third gripping arm (10);
• a first prismatic portion (5a) located on the first gripping arm, a second prismatic portion (5b) located on the second gripping arm, and a third prismatic portion (11) located on the third gripping arm;
• a first external end (6a) located on the first gripping arm, a second external end (6b) located on the second gripping arm, and a third external end located on the third gripping arm;
• the handle comprising
• a main body (45),
• a first prismatic housing-guide (4a), a second prismatic housing-guide (4b), and a third prismatic housing-guide (9) contained within the main body,
• the first prismatic portion inserted in the first housing-guide, the first housing-guide holding and guiding the first gripping arm, and the first external end being external to the main body,
• the second prismatic portion inserted in the second housing-guide, the second housing-guide holding and guiding the second gripping arm, and the second external end being external to the main body,
• the third prismatic portion inserted in the third housing-guide, the third housing-guide holding and guiding the third gripping arm, and the third external end being external to the main body,
• each gripping arm being removable from the main body;
• selective locking elements located on the first prismatic portion;
• and
• a self-locking lever device (3) connected to lock into place one of the gripping arms.

A tool system providing a tool with a self-locking grip and interchangeable head-pieces, comprising:

• a tool handle (1);
• three gripping arms interchangeably serving as a first gripping arm (2a) and a second gripping arm (2b) and third gripping arm (10) within the tool handle,
• the three gripping arms comprising a like prismatic portion located on an end and differing tool portions located on a second gripping arm end,
• the handle comprising
• a main body (45),
• three prismatic housing-guides (4a, 4b, 9) contained within the main body,
• the prismatic portion of each gripping arm being insertable in each of the housing-guides, each housing-guide holding and guiding an inserted gripping arm;
• and
• a self-locking lever device (3) connected to lock into place one of the gripping arms.