Carbide, Serrations and Ceramic: the Technology Behind the Blade

Ring colour is shorthand for a material choice — here is what each one actually does.

Key takeaways

Tungsten carbide is harder than stainless, so the edge lasts longer (gold rings).
Micro-serrations grip tissue to stop it sliding along the blade (black rings).
TC Plus SuperCut combines carbide durability with serrated grip.
Ceramic coating is optical, not a cutting tech — it cuts glare under lights and lasers.

The colour on a scissor's finger rings is shorthand for a material choice, and each choice changes how the blade behaves. It helps to understand the mechanism, not just the marking.

Tungsten carbide: hardness that holds an edge

Tungsten carbide is far harder than standard stainless steel. Bonded onto the blades, it resists the gradual wear that dulls an edge, which is why TC scissors keep cutting cleanly for longer. The gold rings are simply the industry's way of flagging that carbide is present.

Micro-serration: grip instead of slip

A SuperCut blade is finely serrated along one edge. Those micro-teeth catch the tissue so it cannot slide along the blade as it is cut, which is what gives the clean, controlled feel on delicate structures. TC Plus SuperCut pairs that serrated edge with a carbide blade so you get grip and durability together.

Carbide is about edge life; serration is about grip; coating is about light.

Ceramic coating: managing light, not cutting

A hard black ceramic finish is a coating over the whole instrument, not a cutting technology. Its job is optical: a matte, non-reflective black surface throws back far less light from operating lamps, microscopes and lasers, so the surgeon's view of the cutting line stays clear.