Electrically-adjustable tool holder

An electrically-adjustable tool holder configured for holding a tool and comprising:

• a handle body;
• a connecting member with a first end securely coupled to an end of the handle body and a second end opposite to the first end, the connecting member defining a through hole passing through the first end and the second end;
• and
• a driving member comprising:
• a magnet securely received in the through hole, and
• an electric coil movably received in the magnet and securely coupled to the tool, wherein the electric coil is configured to move the tool up or down along a central axis of the handle body in the magnet when electrically stimulated,
• wherein the magnet comprises:
• a loading body comprising a first end, a second end opposite to the first end, and a sidewall interconnecting the first end and the second end, and defining a holding hole space with an inner surface in the loading body extending from the first loading end into the loading body toward the second loading end, and
• a plurality of magnetic plates mounted on the inner surface of the holding hole;
• the electric coil is movably received in the holding hole.