Heavy-Duty Deep Bore Honing Stones for Mining Hydraulic Cylinders
H70 and H50 Metal Bond Superabrasive Stone Set for Sunnen MPS Tooling
CBN and Diamond Honing Stone Sets for Cylinder Hone Head.
Product Description
BOSON Abrasives offers a complete range of Conventional abrasives Aluminum oxide and Silicon carbide stones, CBN and Diamond Superabrasive Honing Stone Sets for use with Sunnen MPS Modular Tooling Systems on HT Series tube Honing Machines, ideal for precision deep-hole applications such as hydraulic cylinders and engine components.
With over 20 years of professional expertise in honing technology, BOSON integrates top-grade diamond/CBN abrasives, advanced bonding systems, and precision manufacturing to deliver honing stones that provide:
• High material removal rates
• Excellent bore geometry
• Superior surface finish
Product Details:
• H50 Honing Stone Sets - for use with MPS-H50 Hone Heads
Each set includes: 2 abrasive stone assemblies

• H70 Honing Stone Sets - for MPS-H70 / H85 / H165 / H200 Hone Heads
Each set includes: 2 honing stone assemblies + 2 guide shoes
Honing Stone Code Explanation
H70 - |
A |
4 |
5 |
Abrasive Types |
Grit Size |
Hardness |
Series |
Abrasive |
Grit |
Hard- |
A - Aluminum Oxide |
1- |
70 |
8- |
400 |
1- |
Soft |
|
Type |
Size |
ness |
C,J - Silicon Carbide |
2- |
80 |
9- |
500 |
3- |
|
|
|
|
|
DM, DR, DV - Diamond |
3- |
100 |
0- |
600 |
5- |
|
|
|
|
|
NM, NR - CBN |
4- |
150 |
80- |
800 |
7- |
|
|
|
|
|
|
5- |
220 |
90- |
900 |
9- |
|
|
|
|
|
|
6- |
280 |
10- |
1000 |
11- |
|
|
|
|
|
|
7- |
320 |
00- |
1200 |
13- |
|
|
|
|
|
|
|
|
|
|
15- |
Hard |
Available in:
• CBN and Diamond Superabrasives
• Conventional abrasives honing stones
• Standard stock: H70A45N stone sets available for immediate shipment
Applications:
Main Application Fields of Horizontal Deep Hole Honing:
1. Hydraulic and Pneumatic Systems• Achieving tight tolerances and smooth surface finishes for pressure sealing.
• Used in both mobile and industrial hydraulics.
2. Oil & Gas Industry
• Honing of long cylindrical components subjected to high pressure and wear.
3. Automotive & Diesel Engine Manufacturing
• For high-precision internal combustion engine parts and transmission systems.
4. Aerospace & Aviation
• Processing of structural and propulsion-related components requiring perfect bore geometry.
5. Defense and Firearms Industry
• Deep bore honing for consistent barrel dimensions and accuracy.
6. Compressor and Pump Manufacturing
• Enhancing sealing performance and wear resistance in reciprocating parts.
7. Heavy Machinery & Mining Equipment
• Deep hole honing for long wear-resistant cylinders and liners.
Fast delivery | Sunnen compatible | Custom grits available
Contact BOSON Abrasives today for a quote or technical support.
Detailed Photos
Superabrasive H70 Honing Stone Set, Diamond and CBN Honing Stones








