CBN Honing Stones K8nm57 Grit 220# for Sunnen Honing Machines
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Product Highlights
- Wide Material Compatibility: Hones hardened steel, aluminum, titanium, ceramics, and more with consistent finish.
- High Efficiency & Long Life: Stable cutting without clogging, ensuring long stone life and short cycle times.
- Competitive Pricing: High-quality Sunnen standard K, L, P series stones at competitive prices.
- Fast Response Time: Free samples and price quotes available with replies within 24 hours.
- Multiple Bond Options: Available in Metal Bond with various grain sizes for specific applications.
Product Attributes
- Customization
- Available
- Type
- Honing Stones
- Material
- Diamond or CBN Abrasives
- Model NO.
- K8NM57
- Application
- Bore Honing and Finishing
- Effect
- Honing
- Bond
- Metal Bond
- Grain Size
- Nm55 Nm85, Nm05, Nm005, Dm55 Dm05
- Lead Time
- 2 Weeks
- Courier
- DHL /FedEx Express
- Transport Package
- Carton Box
- Specification
- K8NM55, K8NM57
- Trademark
- BOSON ABRASIVES
- Origin
- China
- HS Code
- 6804219000
- Production Capacity
- 20000 PCS. / Month
- Package Size
- 8.00cm * 2.00cm * 2.00cm
- Package Gross Weight
- 0.200kg
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
Product Images of CBN Honing Stones K8nm57 Grit 220# for Sunnen Honing Machines
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CBN Honing Stones K8nm57 Grit 220# for Sunnen Honing Machines -
CBN Honing Stones K8nm57 Grit 220# for Sunnen Honing Machines -
CBN Honing Stones K8nm57 Grit 220# for Sunnen Honing Machines -
CBN Honing Stones K8nm57 Grit 220# for Sunnen Honing Machines -
CBN Honing Stones K8nm57 Grit 220# for Sunnen Honing Machines -
CBN Honing Stones K8nm57 Grit 220# for Sunnen Honing Machines -
CBN Honing Stones K8nm57 Grit 220# for Sunnen Honing Machines
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Product Description
K8NM57 CBN (Borazon) Honing Stones. Stone Length 31.70mm
Sunnen Style Diamond and CBN Honing Stones, Honing Mandrels, Adapters.
BOSON ABRASIVES specialized in manufacturing Superabrasives diamond honing stones, CBN honing stones, Honing tools for Sunnen and other honing machines. We can provide a wide range of Sunnen standard K, L, P series honing stones at a competitive price with same quality.
Our ability to supply Sunnen honing stones in a variety of grit sizes and bond configurations enables us to hone a variety of materials including hardened tool steels, steels of varying alloys, aluminum, titanium, bronze, brass, cast iron, stainless steel, and ceramics.
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
K8 / BL8 Honing Units, Diameter Range: 6.22mm - 7.82mm / .245" - .308"
| Diameter Range mm | Diameter Range Inches | K8 Mandrel | BL8 Mandrel | Adapter | Alignment Bushing | Truing Sleeve | Honing Stone |
| 6,22-6,35 | .245-.250 | K8-245A | BL8-245A | K8-A/BL8-A | C-245 | S-245 | K8DM35 / L8DM35 |
| 6,35-6,48 | .250-.255 | K8-250A | BL8-250A | K8-A/BL8-A | C-250 | S-250 | K8DM45 / L8DM45 |
| 6,48-6,60 | .255-.260 | K8-255A | BL8-255A | K8-A/BL8-A | C-255 | S-255 | K8DM55 / L8DM55 |
| 6,60-6,73 | .260-.265 | K8-260A | BL8-260A | K8-A/BL8-A | C-260 | S-260 | K8DM085 / L8DM85 |
| 6,73-6,86 | .265-.270 | K8-265A | BL8-265A | K8-A/BL8-A | C-265 | S-265 | K8DM05 / L8DM05 |
| 6,86-6,98 | .270-.275 | K8-270A | BL8-270A | K8-A/BL8-A | C-270 | S-270 | K8DM005 / L8DM005 |
| 6,98-7,11 | .275-.280 | K8-275A | BL8-275A | K8-A/BL8-A | C-275 | S-275 | K8NM35 / L8NM35 |
| 7,11-7,24 | .280-.285 | K8-280A | BL8-280A | K8-A/BL8-A | C-280 | S-280 | K8NM45 / L8NM45 |
| 7,24-7,37 | .285-.290 | K8-285A | BL8-285A | K8-A/BL8-A | C-285 | S-285 | K8NM55 / L8NM55 |
| 7,37-7,49 | .290-.295 | K8-290A | BL8-290A | K8-A/BL8-A | C-290 | S-290 | K8NM85 / L8NM85 |
| 7,49-7,62 | .295-.300 | K8-295A | BL8-295A | K8-A/BL8-A | C-295 | S-295 | K8NM05 / L8NM05 |
| 7,62-7,82 | .300-.308 | K8-300A | BL8-300A | K8-A/BL8-A | C-300 | S-300 | K8NM005 / L8NM005 |
Diamond and CBN Honing Stone Code Explanation Chart.
Standard Honing Stones, Honing Mandrels Chart
Features:
• Stable cutting ability without clogging, loading and glazing
• Only use CBN and diamond abrasives from Diamond Innovation
• Automotives: engine blocks, connecting rod, pinion gears, brake drums,valve rocker arms, steering knuckles, master and wheel cylinders
• Aerospace: Hydraulic valves and blocks, Piston pumps, Fuse pinsanding gears
• Airconditioning and refrigeration
• Diesel engines
• Engine building
• Hydraulics
• Energy
• Firearms and defense
• Job shops and contract machining
• Motorcyces
• Sewing machine's components.
• Tools and Die
For Honing Machines:
Sunnen, Delapena, Nagel, Gehring, Kadia, Engis, Pemamo, Degen, Nissin, Fuji, Toyo, Micromatic, General Hone, Mas, Honitech etc.
Package
100% replaceable with original Sunnen honing stones with 50% cost saving.Feel free to contact us for free sample and price. We will reply within 24 hours.
About the Supplier
This supplier has been audited by SGS. Verify the report on the official SGS website with ID "QIP-ASR2391261". Items marked "
" are certified.
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Company Profile
Boson Abrasives was founded in 2013, our technical engineers, sales team have more than 20 years of experience in honing and grinding industry. We dedicated to provide honing and grinding solutions for automotive, motorcycle, air conditioning and refrigerator compressors, gears, bearings, hydraulics, electronic, aerospace, mold & tools industries, etc...
We are committed to research, development and manufacturing of high quality of diamond and CBN honing stones, honing tools, honing head, single pass honing tools, diamond grinding wheels, CBN grinding wheels, diamond cutting wheels, diamond dressing tools.
Honing tools are our main products. With many years of R&D and production, we have developed special metal bonding technology for different application. Boson Abrasives only use the world highest quality of diamond and CBN abrasives from GE ( Diamond Innovation) to ensure the high quality of honing abrasives. Our honing stones ( abrasive sticks) shows high cutting ability with good wear resistance, stable quality.
Honing tools products incl. CBN and diamond honing stones, honing abrasives, single stone honing tools, multi-stone honing tools, high precision double feed honing head for engine blocks, GHSS hone head for engine rebuilding, single pass honing tools. Most of our honing tools are tailer made for specific application. Boson honing tools are fit for Sunnen, Gehring, Nagel, Nissin, FUJI, Toyo, Kadia, Engis, Delapena and many other honing machines.
We export products with customers in over 30 countries incl. USA, Canada, Germany, France, Italy, United Kingdom, Russia, Ukraine, India, Turkey, Thailand, Singapore, etc.
Our Vision
Boson Abrasives is committed to providing quality of honing, grinding and related products and custom engineered solutions in a way that exceeds the expectations of our customers.
About Our Factory & Business Background
- Address
- No.55 Hanghai East Road, Guancheng District, Zhengzhou, Henan, China
- Terms of Payment
- T/T, PayPal
- International Commercial Terms(Incoterms)
- FOB, CFR, CIF, CPT, EXW, FCA, CIP
- Average Lead Time
-
Peak Season Lead Time: within 15 workdays
Off Season Lead Time: within 15 workdays - Nearest Port
- Beijing, Guangzhou, Zhengzhou
Our Production Capability & Technical Expertise
Our Industry Experience & Global Business Record
- Export Year
- 2013-03-15
- Main Markets
- North America, South America, Eastern Europe, Southeast Asia, Oceania, Mid East, Eastern Asia, Western Europe
FAQ
- What materials can these honing stones process?
- They are suitable for hardened tool steels, alloy steels, aluminum, titanium, bronze, brass, cast iron, stainless steel, and ceramics.
- Are these stones compatible with Sunnen machines?
- Yes, they are 100% replaceable with original Sunnen honing stones and fit K8 mandrels.
- What is the lead time for orders?
- The standard lead time is 2 weeks. Peak and off-season lead times are within 15 workdays.
- What payment methods are accepted?
- We accept T/T and PayPal for payments.
- What are the available bond types?
- We provide Metal Bond options for both Diamond (DM) and CBN (NM) abrasives.
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