What is the lifespan for these? How many times can a block of seven kitchen knives (for example) be sharpened, before needing to be replaced?

They are good quality belts in my opinion, but you're asking a question not easily answered. Did the block of seven knives just slice 5 tomatoes each or were they used on an infomercial where they cut a boot in half then sliced 5 tomatoes? How dull and or damaged they are directly affects belt life proportionally. Duller they are the more wear you put on a belt to sharpen but I would approximate 50-100 knife sharpenings per set

Are these the actual work sharp belts, same belts that came with my blade grinder attatchment?

Hello Jeff, Yes, these are the same belts that came with Blade Grinding Attachment. The pack includes one each of the P120, X65, X22, X4 and 12,000. For more information please contact Customer Service at 1-800-418-1439.

Hi is this 1" x 18" belt? Im confused, thank you

Yes, this is the 1" x 18" belt that only works with the blade grinding attachment (WSSAKO81112) as pictured on the box. The stated dimensions are 1" x 9.25" which is correct for an 18" belt (9" each side). The regular Ken Onion sharpening attachment uses shorter belts.

Are these OEM or aftermarket?

Our abrasive belts are not OEM. They are sourced in custom sizes just for our sharpeners. We do not make the abrasive itself, but they are not available anywhere else in these sizes. Our belts are manufactured to be fast cutting as well as cool cutting, meaning they will not overheat the blade, a unique combination. If you have additional questions, feel free to contact our Technical Support team at 1-800-418-1439.

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Work Sharp WSSAKO81115 Replacement Belt Kit for Ken Onion Blade Grinder Attachment

Product ID: 4723723

Details

Brand
WORK SHARP
Color
Ken Onion Belt
Global Trade Identification Number
Grit Type
Coarse Extra
Item Weight
0.2 Kilograms
Manufacturer
Work Sharp

⏳long-lasting engineered abrasives

🔧fits Ken Onion Blade Grinder only

⚙️5 precision grit belts

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€ 43.30

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Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔪 Sharpen smarter, not harder — the pro’s secret edge!

TAILORED FIT - Specifically crafted for the Ken Onion Blade Grinder attachment—no compromises.
MIRROR EDGE READY - Achieve professional-grade sharpness effortlessly, every time.
UPGRADE YOUR WORKFLOW - Quick belt swaps keep your sharpening game fast and flawless.
VERSATILE 5 GRIT SYSTEM - From extra coarse to ultra-fine, sharpen every edge with precision.
ENGINEERED FOR ENDURANCE - Premium synthetic belts designed to outlast and outperform.

The Work Sharp WSSAKO81115 Replacement Belt Kit offers five premium-grade abrasive belts ranging from extra coarse to extra fine, engineered specifically for the Ken Onion Blade Grinder attachment. Designed for durability and precision, this kit ensures professional-level sharpening performance, enabling users to maintain razor-sharp edges with ease and speed.

Specifications

ASIN	B00J9AADOK
Best Sellers Rank	#33,055 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #50 in Power Tool Replacement Parts
Brand	WORK SHARP
Brand Name	WORK SHARP
Color	Ken Onion Blade Grinding Belt
Customer Reviews	4.7 out of 5 stars 790 Reviews
Global Trade Identification Number	00662949038935
Grit Type	Coarse, Extra Coarse, Extra Fine, Medium
Included Components	Ken Onion Blade Grinding Belt
Item Dimensions L x W x H	9.29"L x 2.56"W x 2.14"H
Item Type Name	fixed blade,hunting knife,hunting,camping,outdoor
Item Weight	0.2 Kilograms
Manufacturer	Work Sharp
Manufacturer Part Number	WSSAKO81115
Manufacturer Warranty Description	Manufacturer Warranty
Material	Synthetic
Material Type	Synthetic
Model Number	WSSAKO81115
Number of Items	1
Product Dimensions	9.29"L x 2.56"W x 2.14"H
UPC	662949038935

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