Whetstone Corundum Emery stone grinding sharpening sharpen abrasive grit tool

Solid corundum emery block whetstone measuring 87mm x 29mm x 12mm — a compact sharpening stone sized for watch, clock and jewellery tools.

⭐ At a glance

📏 Size: 87mm x 29mm x 12mm block

✅ Suits sharpening small hand tools such as screwdrivers, gravers and scrapers

📦 Supplied as a single stone

✔️ Condition: New with tags

🔧 What it does & how to use

A corundum emery whetstone is an abrasive sharpening block used by watchmakers, clockmakers, jewellers and general hobbyists to restore a keen edge or point to small hand tools — ideal for screwdrivers, gravers, scrapers and similar fine blades. It's a bench essential for anyone who needs precise, repeatable sharpening rather than a coarse grinding wheel.

• Lubricate: moisten the stone's surface with a few drops of water or honing oil to reduce friction and clear swarf.
• Position the tool: hold the blade or tip against the stone at a consistent, shallow angle.
• Stroke: draw the edge across the stone in smooth, even passes, keeping the angle steady.
• Check progress: inspect the edge regularly and repeat the strokes until sharp.
• Clean up: wipe the stone clean after use to remove metal swarf and residue before storing.