Stanley Snappy Blades are easy to replace, simply unscrew the blade holder on your pocket snap knife and insert the new blade. Be sure to tighten the blade holder securely before using the knife.
Here are some safety tips for using Stanley Snappy Blades:
Always wear gloves and eye protection when using Stanley Snappy Blades.
Keep the blade sharp. A dull blade is more likely to slip and cause injury.
Cut away from your body.
Never use a Stanley Snappy Blade to cut metal, glass, or other hard materials.
Dispose of used blades properly.