A combination plier grips, twists and cuts from one tool, which is why it is the plier most workshops own first. Length sets the leverage available for all three of those, and a longer plier cuts heavier wire and grips harder for the same effort at the handles. It is also the plier most often reached for without thinking, which is why the grip matters as much as the jaw.
Grip decides how long the hand lasts rather than how well the plier works. A bare handle transmits everything into the palm. A soft grip spreads the load and stays usable in the wet, which matters on a plier held closed under pressure for any length of time.
Insulation is a separate rating rather than a thicker grip, and it is stated as such. A soft grip plier is not an insulated plier however substantial the covering, and the VDE tools sit on their own leaf for exactly that reason. A VDE plier carries its rating stamped on the tool rather than only on the packaging.
Locking forms hold the grip without the hand, which frees it to do something else. Curved jaw auto locking pliers at 175mm and long nose locking pliers at 200mm cover round and reaching work. Air line disconnect pliers at 6 to 12mm release a fitting without damaging it. Send the work to 07754288583 on WhatsApp. Jaw serration is what holds a round section, and it marks anything softer than itself.