What Can You Cut with #9 Single Edge Razor Blades?
By Excel Blades: Precision Cutting Tools & Craft Knives | Published: 2026-10-29
Category: Buying Guides
Discover the versatile uses of #9 single edge razor blades for crafting, scraping, and precision cutting. Learn what materials they handle best and where to use them.
Quick Answer
#9 single edge razor blades are ideal for cutting paper, cardstock, vinyl, tape, and thin plastics, as well as scraping paint or adhesive from flat surfaces.
Why Choose a #9 Single Edge Blade?
The #9 single edge razor blade is a staple in workshops and craft rooms because it combines a sharp carbon steel edge with a stiff carbon backer. This design gives you control for straight cuts and scraping without flexing. The .009" thickness keeps the blade thin enough for detail work but sturdy for repetitive tasks.
Materials to Avoid
Do not use #9 blades on metal, glass, or hard ceramics—the edge will dull quickly and may chip. For thick acrylic or hardwood, a heavier-duty blade like a #2 craft blade or saw blade is safer. The single edge is best for soft to medium-density materials.
Frequently Asked Questions
- Can I cut vinyl with a #9 single edge blade?
- Yes. The sharp edge cuts craft vinyl and adhesive vinyl sheets cleanly. Use a straightedge for long cuts and replace the blade when it starts to drag.
- Is the #9 blade good for scraping paint?
- Absolutely. The stiff carbon backer lets you scrape dried paint, glue, or sticker residue from glass, wood, and plastic without the blade flexing. Hold at a low angle to avoid scratching the surface.
- What about cutting cardboard or paper?
- These blades excel at cutting cardboard boxes, paper stacks, and mat board. The single edge gives a straight, burr-free cut. For very thick corrugated cardboard, score first then snap. For repetitive cardboard cutting, consider a blade with a longer edge or a handle for better grip.
Product Facts
- #9 Single Edge Razor Blades: Excel Blades .009" Single Edge Razor Blades are made from high-quality carbon steel with a carbon backer. The carbon steel edge stays sharp for many cuts on paper, vinyl, and tape, while the backer prevents bending during scraping tasks.
#9 Single Edge Razor Blades
