Joewell Supreme Convex Hair Scissors

CBA-1 is the material statement

Supreme Convex uses Cobalt Base Alloy CBA-1 and Joewell’s Convex PRO blade. The offset build has a small finger hole, permanent finger rest and dry-bearing screw system. Its two right-handed options are 5.7 and 6.0 inches.

Joewell’s SCC model reference identifies that alloy and blade. Cobalt-base alloy is a different material category from a stainless grade that contains cobalt. The cobalt guide makes that distinction useful when reading a product description.

Keep the next comparison specific

At 6.0 inches, compare Supreme Convex with the Supreme SPM. SPM names Powder Metal Alloy, Sword & Flat Blade and a shaped 3D offset handle. Several construction details change alongside the material.

The material library helps you separate those statements. If you are comparing with the 6.0-inch Kasho Silver, keep Silver’s ATS314 steel and hollow convex blade description intact rather than treating all three as the same cobalt cutter.

A small opening needs a fit conversation

“Small” is the maker’s finger-hole description, not a promise that this handle suits a particular hand. Compare opening, ring position and tip placement with a tool you know. Our fit guide gives you concrete observations for that discussion.

The 5.7-inch option brings nominal reach slightly closer than six inches. Choose the length you can place within your cutting method; the size guide explains what those inches measure.

Wipe and dry the blades and protect them in storage. Follow the model’s dry-bearing instructions, and include the CBA-1/Convex PRO identification when arranging professional attention. The service preparation guide helps record a changed cut without inferring its cause from the material.