Best Plastic Sharpening Stones of 2025
* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.
Plastic sharpening stones are a versatile and affordable option for maintaining the sharpness of knives and other cutting tools. Made from durable plastic materials, these sharpening stones are designed to provide a consistent and effective sharpening surface that can be used on a variety of blade types. They are easy to use and can be used dry or with water, making them a convenient option for both professional chefs and home cooks. With a range of grits available, plastic sharpening stones are an excellent choice for those looking to keep their knives sharp and in top condition.
At a Glance: Our Top Picks
#TOP 1
9.8
#TOP 2
9.7
#TOP 3
9.5
Top 8 Plastic Sharpening Stones
Gunpla Magnetic Diamond Sharpening Stone Plate
The Gunpla Diamond Stone is a versatile sharpening tool made from durable 65Mn steel, ensuring excellent abrasion and corrosion resistance. Its strong magnetic base provides knuckle clearance, making it easier for you to secure and change the stone while sharpening. With multiple grit options, ranging from 400 to 1200, you can achieve sharp edges and polish them to perfection. Its compact size allows for easy storage and portability, making it convenient to use wherever you need it.
HFS Double-Sided Diamond Sharpening Stone
The HFS Diamond Sharpening Stone features a size of 155mm X 67mm and offers two grades: 400G coarse for initial sharpening and 1000G fine for honing. The anti-slip plastic base ensures that the stone remains stable during use, providing safety as you sharpen your tools. Its ideal design makes it perfect for sharpening knives, scissors, and various equipment, helping you achieve a precise edge with ease. Additionally, using it with Trend lapping fluid helps prevent clogging and rusting, keeping your tools in top condition.
DMT W6CP 6-Inch Coarse Diamond Sharpener
The DMT W6CP Sharpener is an excellent choice for anyone looking to maintain their knives at home or in a workshop. Its coarse diamond surface quickly transforms dull edges, making sharpening faster than traditional stones. You can conveniently sharpen dry or with water, eliminating the need for oil. Additionally, its durable construction ensures years of reliable performance, so you can enjoy a consistently sharp blade whenever you need it.
Faithfull Diamond Whetstone Sharpening Kit with Base
The Faithfull Sharpening Kit features three electroplated diamond stones with grits of 400G coarse, 600G medium, and 1000G fine, making it easy for you to sharpen various blades quickly and effortlessly. This kit is perfect for sharpening knives, scissors, chisels, and other tools, ensuring they maintain a sharp edge. Unlike traditional stones, these diamond surfaces remain flat over time, providing consistent results. You can use the stones dry or with water, allowing for flexibility in your sharpening process.
King 4000 Grit Sharpening Stone with Plastic Base
The King Sharpening Stone is designed to enhance your sharpening experience with its fine 4000 grit. Measuring 176 x 52 x 15 mm and weighing 399 g, it is compact and easy to handle. The special abrasive material ensures a super finishing touch, perfect for achieving a razor-sharp edge on your tools. Additionally, the plastic base provides stability during use, making it convenient for anyone looking to sharpen their knives or tools effectively. Remember to immerse it in water before use for optimal performance.
Draper 29520 Sharpening Stone Box, Heavy Duty
The Draper Sharpening Stone is a reliable tool for maintaining your blades. With dimensions of 200mm x 50mm x 25mm, it provides ample surface area for sharpening. The impact-resistant plastic ensures durability, making it suitable for heavy-duty use. Designed to the highest standards, this sharpening stone offers both fine and medium surfaces, allowing you to choose the right grit for your needs. This versatility helps you achieve a sharp edge effortlessly, enhancing your overall sharpening experience.
Trend Craft Pro Double-Sided Diamond Bench Stone
The Trend Diamond Bench Stone is an exceptional tool for sharpening your blades quickly and efficiently. With its double-sided design, you can easily switch between coarse and fine grits, allowing you to repair damaged edges or refine cutting surfaces with ease. The sturdy plastic base ensures a non-slip experience, making it safe to use. Additionally, the oval hole on the fine side collects metal residue, enhancing convenience and cleanliness during sharpening. This versatile stone is suitable for both professionals and DIY enthusiasts alike.
HERCHR Dual Grit Diamond Knife Sharpener
The HERCHR Knife Sharpener features a foldable design, making it compact and easy to carry. Its double-sided grinding stones, with 400 and 600 grit, cater to both rough and fine sharpening needs, ensuring your tools stay in top condition. You will find it easy to use; simply rub the blade against the sharpening stone for a quick refresh. This versatile sharpener is suitable for various applications, from kitchen knives to garden tools, enhancing your outdoor and indoor sharpening experience.
Frequently Asked Questions (FAQs)
1. What sharpening stones are best?
Overall, the Sharp Pebble Premium Whetstone impressed us as the most efficient sharpening stone for both professional and novice home cooks alike. The dual-sided sharpening stone features both coarse and fine grit levels, which allows it to sharpen ultra-dull knives and hone super-sharp edges.
2. What is a Japanese water stone?
Japanese water stones are softer than other whetstones, which allows them to quickly create a sharp cutting edge. Water stones are a tried-and-true tool used to repair, sharpen, and polish kitchen knives. There are different types of whetstones — natural and synthetic, oil- and water-based.
3. What are the different types of sharpening stones?
There are three types of knife sharpening stones — oil stones, water stones, and diamond stones. These stones are actually flat, rectangular blocks, with each type having its own characteristics. Sharpening stones are available in natural and synthetic materials.
During our plastic sharpening stone research, we found 156 plastic sharpening stone products and shortlisted 8 quality products. We collected and analyzed 10,256 customer reviews through our big data system to write the plastic sharpening stones list. We found that most customers choose plastic sharpening stones with an average price of £13.07.
The plastic sharpening stones are available for purchase. We have researched hundreds of brands and picked the top brands of plastic sharpening stones, including Gunpla, HFS, DMT, Faithfull, Draper. The seller of top 1 product has received honest feedback from 689 consumers with an average rating of 4.8.
Jennifer Fraser is a licensed contractor specializing in sales, maintenance, and kitchen, bathroom, and home appliances, tools, and utilities. She owns a store in Leeds where you can get any home and tool appliance. Jenny has a degree in literature, but she combines her knowledge and experience with her degree to publish DIY articles on solving home appliances issues to keep up the family enterprise.