| typical name in the U.S. | alternative names |
|---|---|
| double-edge razor blade | |
| scalpel blade | |
| carpet blade | double-edge slotted blade
industrial slotted slitter blade round corner slotted blade (or square corner) |
| utility blade | trapezoid blade |
| single-edge razor blade | |
| X-acto blades† | hobby knife blades |
† Although these technically aren't standardized, enough companies make clones that interoperate with X-acto products, such that it's basically a de facto standard. [chart]