Sunnen Type Honing Stones – CBN / Diamond Superabrasives for Industrial Honing

• Customization: Available
• Type: Standard Oilstone
• Material: CBN or Diamond Abrasives
• Model NO.: P28NM55
• Application: Precision Grinder
• Effect: Bore Honing and Finishing
• Abrasives: CBN or Diamond (Dm or Nm)
• Bond: Metal Bonded
• Grit Size: Dm55, Dm85, Dm05, Nm55, Nm85, Nm05
• Lead Time: 2 Weeks
• Transport Package: Carton Box
• Specification: P28NM55
• Trademark: BOSON ABRASIVES
• Origin: China
• HS Code: 6804219000
• Production Capacity: 30000 PCS. / Month
• Package Size: 8.00cm * 2.00cm * 2.00cm
• Package Gross Weight: 0.500kg

Product Description

Sunnen Alternative Superabrasive Honing Stones
Metal Bond Diamond and CBN Borazon Honing Stones P28NM55, P28NM05

Product Description

BOSON Abrasives offer high-performance CBN and Diamond honing stones compatible with Sunnen honing systems. These superabrasive tools deliver excellent cutting efficiency, extended tool life, and superior surface finish for engine blocks, hydraulic cylinders, and precision bore applications. Custom grit sizes and bonds available for different materials and processes. Ideal for industrial cylinder honing and precision tool reconditioning.
 

Features and Benefits

• Stable cutting ability without clogging, loading and glazing

• Long honing stone life time with short cycle time

• Consistent surface finish without scratch
• Only use CBN and diamond abrasives from Diamond Innovation

• Advanced bonding technoloy with various honing stone's formula suit for different application. 

 

Specification

P28 Series Metal Bond CBN and Diamond Honing Stones

P28 Series	Abrasive Type	Grit Size
P28-NM15	CBN Metal Bond	70#
P28-NM35	CBN Metal Bond	100#
P28-NM55	CBN Metal Bond	220#
P28-NM65	CBN Metal Bond	280#
P28-NM75	CBN Metal Bond	320#
P28-NM85	CBN Metal Bond	400#
P28-NM95	CBN Metal Bond	500#
P28-NM05	CBN Metal Bond	600#
P28-NM005	CBN Metal Bond	1200#
P28-DM15	Diamond Metal Bond	70#
P28-DM35	Diamond Metal Bond	100#
P28-DM55	Diamond Metal Bond	220#
P28-DM65	Diamond Metal Bond	280#
P28-DM75	Diamond Metal Bond	320#
P28-DM85	Diamond Metal Bond	400#
P28-DM95	Diamond Metal Bond	500#
P28-DM05	Diamond Metal Bond	600#
P28-DM905	Diamond Metal Bond	900#
P28-DM005	Diamond Metal Bond	1200#

Other grit size and concentration is available upon request. 



Diamond (DM) - Metal bonded excellent for accelerated stock removal and long abrasive life in cast iron, carbide, titanium, silicon carbide, ceramics, glass, graphite and other exotic materials.

Cubic Boron Nitride (CBN, NM) - Metal bonded excellent for accelerated stock removal and long abrasive life in ferrous materials, including Alloy steel, hardened steel, quenched and tempered steel, mild steel and other steel materials
 

Application

• Automotive components (cylinder bores, fuel injectors, valve guides, con-rod)
• Diesel Engines
• Hydraulics
• Engine Building
• Firearms & Defense
• Air Conditioning & Refrigeration
• Job Shops & Contract Machining
• Small Engines
• Gear and transmission housings
• Tool & Die

We are able to manufactures honing stones ( abrasive stones / sticks ) for Sunnen, Nagel, Gehring, Kadia, Engis, General Hone, Nissin, Fuji, Toyo, Delapena, MAS, and many other brand honing machines.
 

Detailed Photos

 

Quality & Certification

• Manufactured under ISO9001 quality control

• 100% inspected for size and abrasive integrity

• Long-term supply partner for OEMs in Europe, USA and the India. 

Packaging & Shipping

• Packaging: Neutral export box or customized branded packaging

• Lead time: Standard items ship in 10 - 15 working days.

• Shipping: By DHL / FedEx express, By Air or Sea - FOB/CFR/CIF terms available