Self-Retracting Blade Utility Knives
These blades are spring-loaded to automatically retract inside the knife after you release the slide button or squeeze handle.
For styles A and D, release the slide button after you start your cut. Once the knife loses contact with the cutting surface, the blade retracts inside.
Knives with a curved handle fit your hand for a more comfortable hold than those with a straight handle.
Throw disposable knives out when you’re done using them or if they become dull or worn. By tossing them after use, you limit instances of sharing a tool with another worker and spreading germs. The blade is built into the head, so you can’t remove or replace it.
For technical drawings and 3-D models, click on a part number.

Blade | Handle | Each | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Wd. | Thick. | Material | Blade Position | No. of Blades Included | Blade Storage Location | Closed Lg. | Material | Color | Type | Grip Texture | Utility Knife Useful Life | Features | Each | ||
For Use On Cardboard, Cork, Fabric, Leather, Paper, Plastic, Rubber | ||||||||||||||||
A | 1/2" | 1/2" | 0.025" | Stainless Steel | Blade Fully Extended | 1 | None | 4 1/4" | Plastic | Black | Curved | Smooth | Disposable | Ergonomic Design | 0000000 | 00000 |
Single-Use Sampling Knives

Slice, spread, and smooth samples with these knives, then toss them when you’re done to avoid cross contamination. Made of polystyrene, they're rigid enough to cut through material as thick as clay without bending or breaking. They’re FDA compliant for direct contact with food.
Sterile knives are made and individually bagged in an ISO Class 7 clean room, so they’re free of particles that could contaminate your samples.
Blade | ||||||||
---|---|---|---|---|---|---|---|---|
Lg. | Wd. | Lg. | Material | Color | Max. Temp., °F | Specifications Met | Pkg. | |
Pkg. of 10 | ||||||||
Knives | ||||||||
2 3/4" | 3/4" | 7 1/2" | Polystyrene Plastic | White | 155° | FDA Compliant 21 CFR 177.1640 | 0000000 | 00000 |
Sterile Knives | ||||||||
2 3/4" | 3/4" | 7 1/2" | Polystyrene Plastic | White | 155° | FDA Compliant 21 CFR 177.1640 | 0000000 | 00000 |
Pkg. of 100 | ||||||||
Knives | ||||||||
2 3/4" | 3/4" | 7 1/2" | Polystyrene Plastic | White | 155° | FDA Compliant 21 CFR 177.1640 | 0000000 | 00000 |
Sterile Knives | ||||||||
2 3/4" | 3/4" | 7 1/2" | Polystyrene Plastic | White | 155° | FDA Compliant 21 CFR 177.1640 | 0000000 | 00000 |