For all-day comfort on detailed cutting, reach for the OLFA XA-1X-Design Fiberglass-Reinforced Precision Utility Knife. With its ergonomic design, this rubber-grip knife with a fiberglass-reinforced body delivers accurate cutting with a luxurious feel. Use this precision knife right out of the package with its Ultra-Sharp Black Blade installed. OLFA premium Black Blades are double honed to be 25% sharper that standard silver blades. A long stainless-steel channel reinforces the blade for precise cutting. The pocket clip also works as a blade snapper for quick access to new segments. Full blade changes are fast with no additional tools required. Simply remove the end-clip to slide out the blade and replace. Fits most 9mm snap-off blades.