Upgrade New Version 2022 new released chestnut C3 manual coffee grinder performs better in quality and mainly upgrades its burr. Made of durable aluminum body with new S2C stainless steel conical burr, its max capacity is around 20g which can satisfy your daily needs, a cost-effective choice for coffee lovers. [S2C Stainless Steel Conical Burr] Made adjustments on the basis of the S2C burr of chestnut X grinder. It's made of harder and durable SUS420 high-carbon stainless steel which is rust resistant and wear resistant. The flavor can be more clear. Fast cutting and less grinding also reduce fine powder effectively and produce consistent uniform particle size of ground coffee which is suitable for any kind of coffee beans. [Roughness Adjustment Function] Point-to-point regulator allows you to adjust the grinding fineness directly. You can set different grinding clicks to adjust the grinding degrese from fine to coarse according to different coffee beans and your own grinding needs. Suitable for both espresso and pour-over. [Aluminum Alloy Body] The body of the grinder is made of Aluminum. With the classic diamond pattern design,the grinder holds a light weight and is easy to grip. Ergonomic crank handle helps you grind soomthly. Double bearing central axis positioning allows for better uniform grinding particles. [Convenient to carry] Equipped with one storage bag and one cleaning brush. The 474g manual grinder is not only suitable for home but also for traveling or camping.