Shapton RockStar 4000 Grit Sharpening Stone (White Alumina – WA)
The Shapton RockStar series is engineered to deliver fast, precise sharpening with excellent feedback and long-term durability. These stones combine a high abrasive concentration with advanced bonding technology, producing consistent results and a refined sharpening experience.
The 4000 grit RockStar is a fine sharpening stone designed to refine and polish an already well-shaped edge. It effectively removes the scratch pattern left by 2000 grit stones while enhancing edge smoothness, sharpness, and cutting precision. The resulting edge is clean, crisp, and highly versatile for everyday kitchen use.
Despite its fine grit rating, the RockStar 4000 maintains strong cutting efficiency and works confidently on both carbon and stainless steels, including harder blades. It produces a delicate, uniform finish without sacrificing feedback or control.
RockStar stones are splash-and-go and require no soaking. Simply add water and begin sharpening immediately. The solid 10 mm construction helps the stone stay flat longer and maintain a consistent surface. An optional stainless-steel case (sold separately) offers safe, elegant storage and complements any sharpening setup.
Abrasive Type: White Alumina (WA) – a refined aluminum oxide abrasive valued for clean cutting action, excellent tactile feedback, and balanced wear across a wide range of blade steels.
Care Instructions: Do not soak this stone for extended periods. Splash with water only. After use, wipe dry and allow it to air dry naturally at room temperature. Avoid direct sunlight, wind, heaters, hot water, detergents, dishwashers, or dryers. Rapid temperature changes or forced drying may cause cracking.
Brand: Shapton Series: RockStar Grit: 4000 Abrasive Type: White Alumina (WA) Stone Type: Splash-and-Go Length: 210 mm Width: 70 mm Thickness: 10 mm Case: None (stainless-steel case optional) Made in Japan
The Shapton RockStar series is engineered to deliver fast, precise sharpening with excellent feedback and long-term durability. These stones combine a high abrasive concentration with advanced bonding technology, producing consistent results and a refined sharpening experience.
The 4000 grit RockStar is a fine sharpening stone designed to refine and polish an already well-shaped edge. It effectively removes the scratch pattern left by 2000 grit stones while enhancing edge smoothness, sharpness, and cutting precision. The resulting edge is clean, crisp, and highly versatile for everyday kitchen use.
Despite its fine grit rating, the RockStar 4000 maintains strong cutting efficiency and works confidently on both carbon and stainless steels, including harder blades. It produces a delicate, uniform finish without sacrificing feedback or control.
RockStar stones are splash-and-go and require no soaking. Simply add water and begin sharpening immediately. The solid 10 mm construction helps the stone stay flat longer and maintain a consistent surface. An optional stainless-steel case (sold separately) offers safe, elegant storage and complements any sharpening setup.
Abrasive Type: White Alumina (WA) – a refined aluminum oxide abrasive valued for clean cutting action, excellent tactile feedback, and balanced wear across a wide range of blade steels.
Care Instructions: Do not soak this stone for extended periods. Splash with water only. After use, wipe dry and allow it to air dry naturally at room temperature. Avoid direct sunlight, wind, heaters, hot water, detergents, dishwashers, or dryers. Rapid temperature changes or forced drying may cause cracking.
Reviews
1 review(s) WRITE A REVIEW (Reviews are subject to approval) Shapton Rock Star 4kPosted By: Steve Hamley
44 people found this review helpful
I’ve been a Glass Stone HR and HC fan for years, the HR is the best option for cutting the modern wear-resistant knife steels. The HR are also the go to for hard straight razor steels because you can’t push very hard on a razor, so a fast HR is ideal for correcting razor geometry.
I bought the 4k Rock Star and it’s very similar to the 4k Glass Stone, but there are some differences.
- If they maintain the price point, these are an exceptional value
- There’s no glass backing, but we’ve been gluing synths to tiles and glass for years
- The 4k Rock star is rated at 3u, the 4k GS is rated at 3.68u
- It’s recommended on the Shapton site to soak the stone for 5-6 minutes before use to improve the feel. I’ve always left water on my glass stones for a few minutes before honing.
I’m looking forward to acquiring more of them.
44 people found this review helpful
I’ve been a Glass Stone HR and HC fan for years, the HR is the best option for cutting the modern wear-resistant knife steels. The HR are also the go to for hard straight razor steels because you can’t push very hard on a razor, so a fast HR is ideal for correcting razor geometry.
I bought the 4k Rock Star and it’s very similar to the 4k Glass Stone, but there are some differences.
- If they maintain the price point, these are an exceptional value
- There’s no glass backing, but we’ve been gluing synths to tiles and glass for years
- The 4k Rock star is rated at 3u, the 4k GS is rated at 3.68u
- It’s recommended on the Shapton site to soak the stone for 5-6 minutes before use to improve the feel. I’ve always left water on my glass stones for a few minutes before honing.
I’m looking forward to acquiring more of them.
