Holding wires by hand puts real stress on your fingers and makes it hard to keep consistent pressure throughout the procedure, but a pin inserter does the work for you and protects your hands from getting tired or accidentally hurt. The tool gives you a much firmer grip and lets you place pins exactly where they need to go with way more precision than using your fingers alone. You also avoid the risk of needle-stick injuries and can work longer without your hands getting fatigued or sore.