Premium JewelStik Diamond Steel Sharpener 12 Inch Oval Precision Edge for Professional Kitchens
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Estimated delivery time: 2-3 days
The JewelStik 12 inch X 3/4 inch Diamond Steel is the original oval-shaped diamond sharpener that has earned a place in professional kitchens and home setups for over 30 years. With a traditional black handle and a precisely engineered oval body, this sharpener delivers a controlled, repeatable edge on kitchen blades you rely on daily.
Why this design stands out
The oval shape isn’t just for looks—it places your hand in a natural, comfortable position that helps you hold and maintain a steady sharpening angle. For most Western-style knives, you’ll aim for roughly 18 to 22 degrees per side, and the JewelStik makes that target easier to hold consistently across the entire blade length.
Two-sided diamond surface, ready when you are
This model features a diamond surface on both sides of the tool. That means you can flip and re-use without rearranging your grip or re-positioning your knife mid-sharpening, giving you a balanced, symmetric edge every time. The diamond abrasive is durable enough to restore dull edges and refine the edge cleanly, helping you cut with less effort and more control.
Key details at a glance
- Dimensions: 12 inches long x 3/4 inch wide
- Oval-shaped steel with a traditional black handle for secure, comfortable use
- Two-sided diamond surface for convenient, even sharpening on both sides
- Manufactured, assembled, and packaged in the USA
- Lifetime guarantee backed by Hewlett
- Product Code: JSPM12
Who benefits most
- Professional chefs and culinary students who need reliable, repeatable edge maintenance on a variety of knives
- Home cooks who value precision sharpening without guesswork
- Knife enthusiasts who appreciate an established, US-made tool with a long track record
How to get the best results
- Hold the sharpener at a steady angle between 18° and 22° relative to the knife edge.
- Light, even pressure works best—let the diamond surface do the work.
- Sharpen along the full length of the blade, gradually working from heel to tip.
- Flip to the opposite side as needed and repeat to ensure a balanced edge on both sides.
- Wipe and dry the blade after sharpening; store the sharpener in a dry place.
Why choose JewelStik over other sharpeners
Beyond its iconic oval shape and dual-sided diamond surface, this JewelStik delivers a purposeful, predictable sharpening experience. It’s long enough to maintain a consistent angle across the entire blade, reducing the chances of rounded shoulders or uneven edges. And because it’s built in the USA with a lifetime guarantee, you’re investing in a tool that’s designed to endure busy kitchens and evolving knife collections.
Specifications and assurances
Dimensioned for versatility, the 12" x 3/4" JewelStik Diamond Sharpener is compatible with a wide range of kitchen knives—from chef’s knives to utility blades. The product is fully manufactured, assembled, and packaged in the USA, with Hewlett backing its durability for the long haul. The NZ code JSPM12 and related identifiers confirm its established design and reliability within professional settings.