When it comes to flattening water stones, choosing the right lapping plate can significantly impact your sharpening experience. Here, we compare two popular options: the 10×4 Jende Diamond Lapping Plate and the DMT Dia-Flat 95 Plus Lapping Plate. Each has unique features designed to enhance the efficiency and effectiveness of the flattening process.
Grooves Clear the Waste
Flattening water stones generates a slurry of stone particles and water, which can hinder the process if not managed properly. The Dia-Flat 95 Plus addresses this with strategically placed grooves that channel away waste slurry during use. This reduces suction between the flattening plate and the water stone, ensuring smoother movements and a more efficient flattening experience. In contrast, the Jende Lapping Plate utilizes channels between diamond grit layouts to achieve a similar effect, keeping slurry runoff and stiction minimal.
Large 160 Mesh Lapping Plate
Both lapping plates boast impressive dimensions suitable for various sharpening needs. The Dia-Flat 95 Plus measures 10 inches in length and 4 inches in width, utilizing 95 micron (160 mesh) monocrystalline diamond abrasives. This grit size strikes a balance between aggressiveness for quick flattening and achieving a smoother finish suitable for woodworking tools. On the other hand, the Jende Lapping Plate features a 100 grit diamond grid layout, optimized with channels to prevent loading and maintain optimal performance on higher grit stones.
Certified Flat
- The DMT Dia-Flat 95 Plus is precision ground and guaranteed flat within 0.0005 inches, and each unit includes a certificate of flatness.
- The Jende Diamond Lapping Plate uses a solid flat metal plate construction, designed for consistent flattening performance, but it is not described as individually certified flat.
Hardcoat Technology
DMT introduces its proprietary Hardcoat Technology in the Dia-Flat 95 Plus, enhancing the durability of the diamond-coated surface. This innovation extends the lifespan of the lapping plate, crucial given the abrasive wear endured during the flattening process. The Jende Lapping Plate, while robust, emphasizes its construction with a solid metal plate that supports its longevity under frequent use.
Conclusion
Choosing between the Jende 10×4 Diamond Lapping Plate and the DMT Dia-Flat 95 Plus Lapping Plate depends on your specific sharpening needs and preferences. DMT’s focus on precision and durability with the Dia-Flat 95 Plus makes it ideal for users who prioritize certified flatness and long-term performance. Meanwhile, the Jende Lapping Plate offers a tailored design with efficient slurry management, catering to those who value ease of use and minimal maintenance during sharpening sessions.

Ultimately, both plates excel in flattening water stones effectively, each bringing unique features that enhance the sharpening process. Whether you prioritize precision, durability, or user-friendly design, both options provide reliable tools to maintain the performance of your water stones over time.
