Quick answer
Choose the #66 Deluxe Retractable Blades for quick, safe swaps on lighter materials like paper and vinyl, and the #2 Straight Edge Craft Blade for heavy-duty cuts on thicker stock like matte board and foam core.
Blade design and intended use
The #66 blade is a retractable replacement blade designed specifically for the K48 Executive Retractable Knife. Its compact shape suits scoring, trimming, and cutting on lighter materials such as paper, film, plastic, cork, wax, clay, vinyl, and card-stock. The retractable mechanism adds safety and convenience when not in use.
The #2 Straight Edge Craft Blade is a fixed carbon steel blade made for medium to heavy duty craft knives. It handles thicker, tougher materials including matte board, linoleum, foam core, plastic, cardboard, plaster cast, cork, metal, stone, wood, balsa wood, rubber, wax, and clay. Its straight edge provides stability for repeated cuts on dense surfaces.
Key differences at a glance
The #66 blade comes in a 2-pack and is optimized for the K48 retractable knife, making blade changes fast and tool-less. The #2 blade is a universal fit for standard medium to heavy duty craft knives, offering broad compatibility with many knife handles.
Material range is a major differentiator: the #2 blade can cut metal, stone, and wood, while the #66 blade is best reserved for softer, more flexible materials.
Trade-offs to consider
- Ease of blade change: The #66 blade swaps instantly on the K48 retractable knife without tools. The #2 blade requires a standard craft knife handle and manual replacement.
- Material compatibility: The #66 excels on lighter, flexible materials. The #2 handles heavy-duty stock including metal, stone, and wood.
- Knife handle compatibility: The #66 is locked to the K48 knife. The #2 fits virtually any medium to heavy duty craft knife handle.
Product facts
-
#66 Deluxe Retractable Blades, 2-Pack: Excel Blades #66 Deluxe Retractable Replacement Blades, 2-pack, designed for K48 Executive Retractable Knife. Ideal for quick blade swaps and safe storage; best for paper, film, plastic, cork, wax, clay, vinyl, and card-stock.
#66 Deluxe Retractable Blades, 2-Pack
-
#2 Straight Edge Craft Blade, USA Made: Excel Blades #2 Straight Edge Replacement Blade, USA made from carbon steel, fits standard medium to heavy duty craft knives. Cuts through thicker materials like matte board, foam core, cardboard, linoleum, metal, stone, and wood with stability.
#2 Straight Edge Craft Blade, USA Made
Which blade fits your cuts?
Best for
- Crafters and hobbyists working with paper, vinyl, cork, and card-stock who value quick blade changes and retractable safety.
- Users who own or plan to buy the K48 Executive Retractable Knife.
Not for
- Heavy-duty cutting on matte board, foam core, linoleum, metal, stone, or wood.
- Users who need a universal blade that fits multiple knife handles.




