Auto
Grinding Wheel
CBN or Diamond Abrasives
Instrument Industry
Polishing
Metal Bond
Carbide
Flat-Shaped
Resin
K3,K4,K5,K6,K8,K10,K12,K16,K20
L3,L4,L5,L6,L8,L10,L12,L16,L20
AUTO ABRASIVES
Carton Box
25.00cm * 25.00cm * 10.00cm
Henan, China
6804211000
Product Description
Zhengzhou Auto Abrasives offers a premium selection of replacement honing stones, mandrels, wedges, and adapters at prices that redefine competitiveness. These tools are crafted for seamless compatibility with original Sunnen honing tools, ensuring effortless integration with your existing equipment. Simply provide your Sunnen code to experience the flawless performance of our honing tools.
Honing is a precision cutting technique guided by the surface being machined, with the tool rotating and reciprocating for enhanced efficiency. This method excels in adjusting roundness, cylindricity, and surface roughness on demand, making it the ideal choice for high-precision inner hole machining.
Diamond oil stone:Expertly crafted for precision machining, our diamond oil stones are perfect for materials like cast iron, aluminum alloys, copper alloys, ceramics, cemented carbide, magnetic materials, electric carbon products, and an array of non-ferrous metals.
Cubic boron nitride (CBN) oil stone:Exceptional for processing high-hardness materials, our CBN oil stones are ideal for tool steel, die steel, alloy steel, stainless steel, quenched parts, and surfaces with chromium plating.Explore our comprehensive Sunnen-type Honing Stones specification chart:
K series:
B series:
L series:



Founded in 2010, Zhengzhou AUTO Superabrasives Products Co., Ltd., stands at the forefront of innovation in superhard material products. Specializing in research and development, we produce an array of honing tools and their accessories. Our products find application across diverse industries including automotive, motorcycle, refrigeration, hydraulics, textiles, mining, power tools, and aerospace, among others.
Our honing tools excel in precision machining of inner holes in various components such as cylinder blocks, gears, connecting rods, pistons, oil pump nozzles, and hydraulic parts.
Our offering includes honing stones, sleeves, rods, and accessories, compatible with both imported and domestic vertical and horizontal honing machines.
Honing involves a precise grinding process guided by the machined surface, with tool rotation and reciprocation yielding high efficiency. This versatile process allows for on-demand adjustments to roundness, cylindricity, and surface finish, making it perfect for high-precision inner hole applications.
Our diamond honing stones are meticulously designed for precision machining of cast iron, aluminum, copper, quartz glass, ceramics, hard alloys, magnetic materials, semiconductor materials, electric carbon products, and a wide range of non-ferrous metals.
Cubic boron nitride (CBN) honing stones are specifically engineered for processing high-hardness materials like tool steel, die steel, alloy steel, stainless steel hardened parts, and chrome-plated surfaces.
Guided by a spirit of excellence, we are committed to providing each customer with professional, efficient, and precise honing tools and services, embodying our pursuit of unmatched quality.



1. Who are We?
Zhengzhou AUTO Superabrasives products Co., Ltd. is located in Zhengzhou, Henan, China, and has been developing, producing and selling honing tools since 2010.
2. What are the products?
Honing tools can be used with Roltter SUNNEN Gehring, Nagel, Kadia, Engis, Nissin, Fuji,Toyo, Mas and other honing machines.
3. How to ensure quality.
The abrasive is diamond and CBN with high strength, good self-sharpness and high concentration. Strictly in accordance with the process requirements of production testing.
Honing is a precision cutting technique guided by the surface being machined, with the tool rotating and reciprocating for enhanced efficiency. This method excels in adjusting roundness, cylindricity, and surface roughness on demand, making it the ideal choice for high-precision inner hole machining.
Diamond oil stone:Expertly crafted for precision machining, our diamond oil stones are perfect for materials like cast iron, aluminum alloys, copper alloys, ceramics, cemented carbide, magnetic materials, electric carbon products, and an array of non-ferrous metals.
Cubic boron nitride (CBN) oil stone:Exceptional for processing high-hardness materials, our CBN oil stones are ideal for tool steel, die steel, alloy steel, stainless steel, quenched parts, and surfaces with chromium plating.Explore our comprehensive Sunnen-type Honing Stones specification chart:
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 |
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 |
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 |



Founded in 2010, Zhengzhou AUTO Superabrasives Products Co., Ltd., stands at the forefront of innovation in superhard material products. Specializing in research and development, we produce an array of honing tools and their accessories. Our products find application across diverse industries including automotive, motorcycle, refrigeration, hydraulics, textiles, mining, power tools, and aerospace, among others.
Our honing tools excel in precision machining of inner holes in various components such as cylinder blocks, gears, connecting rods, pistons, oil pump nozzles, and hydraulic parts.
Our offering includes honing stones, sleeves, rods, and accessories, compatible with both imported and domestic vertical and horizontal honing machines.
Honing involves a precise grinding process guided by the machined surface, with tool rotation and reciprocation yielding high efficiency. This versatile process allows for on-demand adjustments to roundness, cylindricity, and surface finish, making it perfect for high-precision inner hole applications.
Our diamond honing stones are meticulously designed for precision machining of cast iron, aluminum, copper, quartz glass, ceramics, hard alloys, magnetic materials, semiconductor materials, electric carbon products, and a wide range of non-ferrous metals.
Cubic boron nitride (CBN) honing stones are specifically engineered for processing high-hardness materials like tool steel, die steel, alloy steel, stainless steel hardened parts, and chrome-plated surfaces.
Guided by a spirit of excellence, we are committed to providing each customer with professional, efficient, and precise honing tools and services, embodying our pursuit of unmatched quality.



1. Who are We?
Zhengzhou AUTO Superabrasives products Co., Ltd. is located in Zhengzhou, Henan, China, and has been developing, producing and selling honing tools since 2010.
2. What are the products?
Honing tools can be used with Roltter SUNNEN Gehring, Nagel, Kadia, Engis, Nissin, Fuji,Toyo, Mas and other honing machines.
3. How to ensure quality.
The abrasive is diamond and CBN with high strength, good self-sharpness and high concentration. Strictly in accordance with the process requirements of production testing.