Experience a revolution in cutting technology with our honing method! This sophisticated process is precisely guided by the surface to be machined, where the tool rotates and reciprocates seamlessly. With unparalleled efficiency, it allows for the fine-tuning of roundness, cylindricity, and surface roughness at any moment to meet your specific demands, making it the quintessential choice for the high-precision machining of inner holes.
Introducing Diamond Oil Stone:Perfectly crafted for precision machining, our Diamond Oil Stone is ideal for working with materials such as cast iron, aluminum alloy, copper alloy, ceramics, cemented carbide, magnetic materials, electric carbon products, and non-ferrous metals. Enhance your machining capability with this versatile solution.
Introducing Cubic Boron Nitride (CBN) Oil Stone:Tailored for high-hardness material processing, our CBN Oil Stone excels with tool steel, die steel, alloy steel, stainless steel, quenched parts, and surfaces with chromium plating. Experience unmatched precision and durability for your toughest projects.
Product Parameters
Sunnen Type Honing Stones Specification Chart:
Delve into the K Series:
Honing Units |
K3 |
K4 |
K5 |
K6 |
K8 |
K10 |
K12 |
K16 |
K20 |
AK20 |
AK30 |
Stone Length(mm) |
15 |
15 |
18 |
19 |
32 |
32 |
45 |
67 |
63 |
63 |
63 |
Diamater Range(mm) |
2.5-3 |
3-4 |
4-5 |
5-6 |
6-8 |
8-9.5 |
9.5-13 |
13-16 |
16-19 |
19-32 |
32-40 |
Explore the B Series:
Honing Units |
B8 |
B10 |
B12 |
B14 |
B16 |
B20 |
AB30 |
Stone Length(mm) |
47 |
47 |
60 |
70 |
85 |
95 |
95 |
Diamater Range(mm) |
6-8 |
8-9.5 |
9.5-13 |
9.5-13 |
13-16 |
16-19 |
19-32 |
Discover the L Series:
Honing Units |
L3 |
L4 |
L5 |
L6 |
L8 |
L10 |
L12 |
L16 |
L20 |
Stone Length(mm) |
25 |
25 |
32 |
35 |
57 |
57 |
88 |
114 |
114 |
Diamater Range(mm) |
1.9-3 |
3-4 |
4-5 |
5-6 |
6-8 |
8-9.5 |
9.5-13 |
13-16 |
16-32 |


Detailed Photos

Company Profile
Founded in 2010, Zhengzhou Auto Superabrasives Products Co., LTD. is a trailblazing enterprise at the forefront of superhard material innovation. Specializing in the research and production of top-tier honing tools and accessories, we serve a diverse range of industries, including automotive, motorcycle, refrigeration, hydraulic, textile, mining machinery, power tools, and aerospace. Our meticulously crafted products are indispensable for high-precision machining in components such as cylinder blocks, gears, connecting rods, pistons, oil pump nozzles, and hydraulic components.
Our core product lineup includes honing stones, reaming and honing sleeves, honing rods, and an array of honing accessories, compatible with both imported and domestic vertical and horizontal honing machines. Guided by the spirit of 'excellence, the pursuit of excellence,' we are dedicated to delivering professional, efficient, and precision-engineered honing tools to meet and exceed the expectations of every customer.
Our Advantages


1. Who Are We?
Situated in the heart of Zhengzhou, Henan, China, Zhengzhou AUTO Superabrasives Products Co., Ltd. has been a pioneering force in the honing tools industry since 2010, committed to developing, producing, and selling top-quality honing solutions.
2. What Are the Products?
Our expertly-crafted honing tools are meticulously designed for compatibility with a range of high-performance machines, including Roltter, SUNNEN, Gehring, Nagel, Kadia, Engis, Nissin, Fuji, Toyo, and Mas honing machines. Elevate your machining operations with our versatile tools.
3. How to Ensure Quality.
We use premium diamond and CBN abrasives characterized by high strength, excellent self-sharpness, and superior concentration. Our rigorous adherence to process requirements guarantees exceptional production and testing standards, ensuring unparalleled quality and performance.