Bi-Rite Guest Day Knife Sharpening – First Monday of Every Month Bi-Rite Guests can bring in their Bi-Rite receipts to Bernal Cutlery (593 Guerrero St) on the first Monday of each month for expedited sharpening at the regular rate. All proceeds will benefit 18 Reasons’ Cooking Matters Program. Forgot your knives on the first Monday? You can bring your knives to Bernal Cutlery during the first week of every month (Mon-Sun), with a Bi-Rite receipt from Monday to support our local 18th Street neighbors and receive expedited sharpening.