X-Acto Blades come in many styles, each with a different use, and they are all extremely sharp. Pick the blade that best fits your project and find a handle that is designed for your blade. Use with caution and always wear safety goggles. Most blades and handles have color strips on the bottom of the package so you can easily identify which work together. #11 Fine Point 5pc- Extremely sharp point for fine angle cutting and stripping. For use with A handle knives. Refill for XTO3201 Precision Knife #1, and XTO3728 Precision Knife X2000, sold separately.