In stone processing and fabrication, polishing is a critical step that determines the final surface quality and commercial value of the finished product. Portable hand-held polishing power tools enable precise surface finishing, intricate detail work, and professional-grade results on all types of stone materials—from rough grinding to mirror-finish polishing.

KYNKO: China's #1 Stone Power Tools Brand

With three production bases strategically located in Hui'an, Quanzhou—the world capital of stone carving—KYNKO benefits from being at the heart of China's stone processing industry. Surrounded by a dense cluster of stone fabrication workshops, monument makers, and architectural stone suppliers, KYNKO has direct access to industry expertise and real-world feedback from thousands of professional users. This proximity to the stone trade drives continuous product refinement and ensures our tools meet the demanding standards of professional stone workers who rely on their equipment daily.

1. Featured Product: KYNKO KD25 Wet Grinder

125mm Wet Angle Grinder Built for Stone Professionals

The KD25 is purpose-built for stone, marble, and granite grinding and polishing, featuring:

（1）Variable Speed Control – Adjust RPM from low to high to match different polishing stages, materials, and pad types

（2）Waterproof & Dustproof Core Technology – Patented oil seal design at critical water inlet points ensures reliable performance in wet conditions and extends motor life

（3）Enhanced Power & Durability – Upgraded rotor delivers higher torque and work efficiency; precision-engineered oil reservoir at bearing positions reduces friction and heat

（4）Professional-Grade Construction – Heat-resistant housing made from imported materials prevents cracking and deformation under heavy use; patented motor coating technology protects against moisture and wear

The KD25 handles everything from aggressive material removal with coarse diamond pads to final polishing with fine resin pads. Its robust waterproof design makes it ideal for wet grinding applications where dust suppression and cooling are essential.

2. Why Stone Professionals Choose KYNKO

（1）Engineered for Durability

Stone work is demanding. Grinding granite, polishing marble, and shaping engineered stone generates extreme dust, heat, and vibration. KYNKO tools are built to withstand these harsh conditions day after day. We use imported NMB bearings, reinforced motor housings, and advanced sealing systems because we understand that downtime costs money.

（2）Tested in Real-World Conditions

Being based in Quanzhou means our R&D team works alongside stone fabricators every day. We test prototypes in actual workshops, gather feedback from master stone carvers, and refine our designs based on real job site performance—not just lab results. This practical approach ensures KYNKO tools perform when it matters most.

（3）Comprehensive Stone Tool Range

Beyond wet grinders, KYNKO offers a complete lineup of stone processing tools:

① Angle Grinders (dry & wet models) – 100mm to 230mm for cutting, grinding, and polishing

② Marble Cutters – Precision cutting systems for slabs and tiles

③ Polishers – Variable speed models for finishing and buffing

④ Core Drill Machines – For plumbing, electrical, and decorative cutouts

Every tool is designed with the same philosophy: professional power, reliable protection systems, and long service life.

Professional Tools Across All Trades

KYNKO's Commitment to Quality Extends Beyond Stone

The engineering discipline that makes KYNKO the go-to brand for stone professionals applies across our entire catalog. Whether you're in construction, metal fabrication, automotive repair, or woodworking, KYNKO delivers performance that professionals depend on:

Impact Drills & Hammer Drills – For concrete, masonry, and structural work

Demolition Hammers – Heavy-duty breaking and chiseling power

Cut-Off Saws – Precision cutting for metal, masonry, and composite materials

Sanders & Planers – Professional surface preparation and finishing

Rotary Tools & Die Grinders – For detail work and precision grinding

Cordless Series – Battery-powered freedom for jobsite mobility

Built to International Standards

With over 30 years of manufacturing experience and expertise serving professional markets worldwide, KYNKO maintains strict quality control standards across all product lines. Every tool undergoes rigorous testing to ensure it meets the demands of daily professional use.

150+ Models. 80+ Countries. One Standard: Professional Grade.

From stone workshops in Quanzhou to construction sites across Europe, Africa, and the Middle East, KYNKO tools deliver consistent performance where it counts. 

We don't cut corners. We build tools that work.