OLFA’s 18mm LA-X utility knife with its secure rubber grip lets users work with confidence. This utility knife can be used for any heavy-duty cutting applications such as construction, drywall, carpet and flooring. This knife also features Ultra-Sharp Black Premium blades, which are double-honed to a 59-degree edge angle to be 25% sharper than standard silver blades. This precise angle and initial sharpness delivers users a clean and smooth cut. The blade also includes a metal pick for puncturing cans, removing light switch plate covers and more.