Precision ground Pick Tip - to easily remove small split shot, weights, and all split rings. They grind their tip to a steep angle so that when it engages with the weight it starts prying immediately. Very effective with small weights which usually are quite difficult to remove from line or tippet.
Half Textured/ Half Smooth Tip - to make both de-barbing and holding thicker gauge hooks easier.
Attachment Hole/Tightening area - to attach pliers to your pack (pick tip can rip some fabric), or to use while tightening/checking the knot on your fly.
Crimp Ridge - improved crimping power for weight, and great for sleeves used with wire rigging.
Cutting Blade - to effectively cut all types of line.
Internal Spring - increased operating tension. The internal spring forces the pliers arms apart, they want to be open in your hand and that makes it much easier to use them.