Abstract: The present invention consists of a safety protective cover for cutting tool head having a protective housing fitted to receive a shape of the cutting tool and the rear portion has a locking mechanism fitted to be inserted inside a hole of the cutting tool. The locking mechanism has at least two locking arms capped at their end by a notch extending outwardly away from the other arm, and each arm comprises at least one rib on the inner surface thereof; and, further, the locking mechanism has a first side opening, a second side opening, a stop opening and a central opening; and has at least one rim on the inner surface of the central opening.

Abstract: The present invention consists on a safety protective cover for cutting tool head having a protective housing fitted to receive a sharp of the cutting tool and the rear portion has a locking mechanism fitted to be inserted inside a hole of the cutting tool. The locking mechanism has at least two locking arms capped at their end by a notch extending outwardly away from the other arm, and each arm comprises at least one rib on the inner surface thereof; and, further, the locking mechanism has a first side opening, a second side opening, a stop opening and a central opening; and comprises at least one rim on the inner surface of the central opening; The notches of the arms protrude out of the hole of the tool by a clicking sound, and a snapping key is inserted through the central opening to the inside of the arms crossing from the cover to before reaching the notches.

Abstract: There is provided a steel handle shovel comprising a coupling assembly between the head shovel and the handle, which provides a higher resistance in the structure of the shovel to the force and the weight the shovel undergoes under working conditions.

Abstract: A trolley handle is configured for placement upon a handle stock for a trolley or wheelbarrow and gripped by an operator for a transit grip to transport a load, a dump grip to dump a load, and a transition grip for transition between the transit and dump grips. The trolley handle includes: a closed loop handle housing; a first grip zone defined upon the closed loop handle housing at a first predetermined position, and configured to ergonomically aid an operator to transit a wheelbarrow load; a second grip zone defined upon the closed loop handle housing at a second predetermined position, and configured to ergonomically aid an operator to dump the wheelbarrow load; and a third grip zone defined upon the closed loop handle housing at a third predetermined position, and configured to ergonomically aid an operator to transition between the first grip zone and the second grip zone.