Shapton GlassStone 500 Grit

Coarse grit stones get the hardest work in a sharpening session - reprofiling bevels, removing chips, rebuilding neglected edges, and cutting through abrasion-resistant steels that finer stones can barely scratch. Most coarse stones do this work reasonably well but dish quickly, leave ragged scratch patterns that take effort to refine, and require minutes of soaking before they are ready to use. The Shapton GlassStone 500 does none of those things. It cuts fast, stays flat longer than most conventional stones at this grit, leaves a surprisingly clean scratch pattern that cleans up quickly at the next grit, and is ready the moment water touches the surface.

The 500 grit GlassStone is one of three stones that define the Shapton Glass lineup - alongside the 2000 and the 16000 - and it is the one that appears in every serious progression regardless of what finishing stone you use after it. The CKTG recommended progression of 500, 1000, and 4000 puts this stone first for a reason: at 500 grit you can handle both light chip repair and normal bevel-setting in a single stone, which simplifies the kit and saves time. The tempered glass backing keeps the stone thin and light, significantly more drop-resistant than conventional ceramic bodies, and the abrasive layer is bonded firmly enough to maintain a flat sharpening surface through heavy use. Note that this is the standard thickness version at 5mm of abrasive - a double-thick version is also available if longevity is a priority.

What Customers Are Saying: Sixteen reviewers have given this stone an average of nearly five stars, with consistent praise for cutting speed, flatness retention, and the no-soak convenience. One experienced sharpener who owns eight Shapton GlassStones across the full grit range called this and the 2000 the three stones the line is known for and described it as a must-buy for anyone building a Shapton kit. Another reviewer noted it leaves a surprisingly light and even scratch pattern for a coarse stone, clean enough to jump directly to 2000 or 3000 grit without an intermediate step. Multiple reviewers use it on woodworking tools and chisels as well as kitchen knives. The one lower rating cited a preference for other coarse stones but praised the compact size as a genuine advantage - a fair point on both counts.

• Brand: Shapton
• Series: GlassStone
• Grit: 500
• Use: Splash and Go (no soaking required after first use)
• Construction: Abrasive bonded to tempered glass
• Stone Dimensions: 210 x 70 x 5 mm (8.25 x 2.75 x 0.2 in)
• Total Thickness with Glass Backing: 10 mm
• Weight: Approx. 14 oz (400 g)
• Item Number: 50102

Care Instructions: Splash with water before each use - no soaking required after the initial first-use soak. Flatten regularly with a diamond plate to maintain a true surface; the GlassStone system is designed to be used with the DGLP flattening plate. Store dry between sessions. Handle with reasonable care - the tempered glass backing is significantly more resistant to breakage than standard ceramic stones but is not indestructible. Spots or uneven color on the surface are normal and do not affect performance.