These tools are insulated throughout rather than at the handle, which is what makes them a different product from a general shovel with a coated grip. The insulation runs the length of the tool so a struck cable does not put the operator in the circuit. It is also why these tools are marked as a specification rather than described as heavy duty.
That is a specified requirement rather than a preference on work near buried services. Where insulated tools are called for, a standard tool does not meet it however carefully it is used, and the specification is what the listing states. It is the kind of specification that appears in a method statement rather than being a buyer preference.
Blade form follows the ground work as it would on any digging tool. A square mouth lifts loose material, a taper mouth cuts into ground, a trenching blade keeps a trench to width, and a drainage shovel is narrower and deeper again for a channel. Blade forms are held across the same insulation rather than only on the common shovel shapes.
A post hole digger works two blades against each other to lift spoil out of a narrow hole rather than opening one. Every form here carries the same insulation, so the tool is chosen by the job rather than by which one happens to be rated. Send the work to 07754288583 on WhatsApp. Handle form and length are stated per tool as they are on any digging tool. A utility shovel covers general work in the same insulated specification as the shaped blades.