Gransfors Bruk Natural Whetstone made from Orsa sandstone and Los slate for precise honing

Gränsfors Bruk AB

Gransfors Bruk Natural Whetstone

Regular price: $156.00
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Sale price: $156.00

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SKU: SKU: 97563855

Gransfors Bruk Natural Whetstone | Dual-Grit Swedish Sharpening Tool

The Gransfors Bruk Natural Whetstone combines two distinct Swedish stones chosen for their sharpening properties and geological heritage. The coarse side uses Orsa sandstone (120–200 grit)—a fossil-free sedimentary rock used for sharpening since the 1500s. Its slightly porous surface removes nicks and restores edge geometry. The fine side features rare Los slate (500–1000 grit), found only in one Swedish region and prized since the late 1800s. Its smooth, hard surface hones blades to an extremely sharp edge with excellent bite.

Both sides work with water to remove metal particles and maintain consistent abrasion. Together, they provide a complete blade sharpening tool in a single, portable tool.

Sandstone Sharpening Stone | Blade Sharpening Tool for Axes and Carving Tools

The rounded, ergonomic shape sits comfortably in hand, making it easy to follow existing bevels and grind angles when sharpening forestry axes, knives, carving tools, and other hand blades. It arrives in a vegetable-tanned leather sheath from Tärnsjö Garveri with a strap for attaching to trousers or backpacks. The leather case doubles as a stropping surface for final edge refinement—a thoughtful detail for field sharpening.

How to Use a Whetstone

Preparation: Soak the stone in water for 5–10 minutes or keep it wet during use. Place on a stable surface.
Sharpening: Hold the blade at its original bevel angle (typically 15–20° for knives, 20–30° for axes). Start with the coarse side, using smooth, consistent strokes along the entire edge. Maintain steady pressure and angle, working in sections if needed.
Finishing: Once the edge geometry is restored, flip to the fine side. Repeat with lighter pressure to refine the edge. A burr will form on the opposite side, indicating metal removal. Flip and repeat until the burr is minimal.
Stropping: For final refinement, strop the blade backward (spine-first) along the leather sheath several times per side.
After Use: Rinse to remove metal particles and dry completely before storing.

Details

Material: Natural Orsa sandstone and Los slate
Coarse Side: Orsa sandstone (120–200 grit)
Fine Side: Los slate (500–1000 grit)
Weight: 4.4 oz (125 g0
Sheath: Vegetable-tanned leather from Tärnsjö Garveri, Sweden
Shape: Rounded, ergonomic profile
Use: Suitable for axes, knives, carving tools, and other hand blades
Origin: Sweden

Meet the Maker

ABOUT GRÄNSFORS BRUK AB

Gransfors Bruk AB has been crafting premium hand-forged axes for over a century, combining traditional blacksmithing techniques with a commitment to sustainability. Located in the heart of Gransfors, Sweden, this small yet renowned forge is home to skilled artisans who shape, temper, and sharpen each axe with precision. Every axe is a testament to craftsmanship, with the smith’s initials stamped on the head as a personal mark of quality.

Built to last and designed with purpose, Gransfors Bruk axes are made using responsibly sourced materials and environmentally conscious production methods. The focus on functionality, durability, and minimal waste ensures a tool that not only performs exceptionally but also respects the planet.

Product Care

Rinse with water after each use to remove metal particles. Dry completely before storing in the leather sheath—never store wet. If the surface becomes glazed, refresh by scrubbing with a stiff brush and water. Avoid dropping or extreme temperature changes. Store in a dry location away from prolonged moisture and direct sunlight.

Gransfors Bruk Natural Whetstone