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.

ASIN	B00J9AADOK
Batteries Included?	No
Batteries Required?	No
Best Sellers Rank	#28,647 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #44 in Power Tool Replacement Parts
Brand	WORK SHARP
Color	Ken Onion Blade Grinding Belt
Customer Reviews	4.7 4.7 out of 5 stars (767)
Date First Available	March 24, 2014
Global Trade Identification Number	00662949038935
Grit Type	Coarse, Extra Coarse, Extra Fine, Medium
Included Components	Ken Onion Blade Grinding Belt
Is Discontinued By Manufacturer	No
Item Package Quantity	1
Item Weight	7 ounces
Item model number	WSSAKO81115
Manufacturer	Work Sharp
Material	Synthetic
Number Of Pieces	1
Number of Items	1
Part Number	WSSAKO81115
Power Source	Hand Powered
Product Dimensions	9.29"L x 2.56"W x 2.14"H
Size	Medium
UPC	662949038935
Warranty Description	Manufacturer Warranty

Ken Onion Blade Grinding Attachment Replacement Abrasive Belt Kit - for use with Item Number 45478, Model Number WSSAKO81115

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