Functionally, how is this actually different from the stock sharpener?

This attachment is MUCH better than the stock attachment, especially if you are sharpening a knife such as a Chef's knife. The stock attachment tends to grind away more material at the first part when you start the pass. On a chef's knife, this creates a concave section at the bolster which is a very important section on a chef's knife. if you're trying to dice things like mint, onions, basil, etc., this raised area will not cut and on a chef's knife, that is a real pain in the butt. This attachment has worked well for me sharpening chef's knifes and any other blade.

could this (along with the KO work sharp, of course) be used to shape a steel blank to make knives from scratch?

You can get 60 and 80 grit belts that work great i just got mine and am impressed with thecbuild quality i made the mistake of buying a cheap 1x30 belt geinder teust me you can do way better work with this i am making a viking seax with mine now its doing great for a hobby knife maker its gold

Has anyone used this for shaping knife handles etc? I am looking for something to use with assembling knife kits.

This is very good making flat grinds. Both on handles and blades. However, for shaping handles from blank to finish, I would suggest a spindle sander like the combo by Ridgid.

Is it possible to get it to go slower than 1200 SFM? I don't want to risk ruining the temper on my best knives!

This attachment is probably the best sharpener on the market for someone not working as a professional. I doubt you'll risk ruining the temper of your blade, but if you are unsure of how much heat is being generated when you are using it, put your fingers on the knife and apply the most gentle of pressure. If you are feeling enough heat that you have to remove your fingers, you're pushing too hard. If you move your blade about 1 inch per second with proper pressure, the blade will not heat up enough to burn you, or anywhere near enough to ruin the temper on the blade. If you feel like you need to put more pressure to remove metal faster, you should drop down to a more coarse belt instead.

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🔪 Sharpen Your Skills, Elevate Your Blades!

COMPLETE GRIT SELECTION - Includes a variety of belts for all tasks.
CUSTOMIZABLE EDGE ANGLES - Perfectly tailored angles from 10° to 35°.
VERSATILE SHARPENING POWER - Adjustable speed for every sharpening need.
PROFESSIONAL QUALITY AT HOME - Achieve results like a blade maker.
UNLEASH YOUR INNER CRAFTSMAN - Transform your blades with precision and ease.

The WORK SHARP Blade Grinder Attachment for Ken Onion Edition MK.1 is a professional-grade tool designed for precision sharpening. Compatible only with the Ken Onion MK.1 Sharpener, this attachment features four adjustable pulleys, allowing users to sharpen knives and tools at angles ranging from 10° to 35°. With adjustable belt speeds from 1200 to 2800 SFM and a selection of five 1" x 18" abrasive belts, it provides the versatility needed for various sharpening tasks. Ideal for both hobbyists and professionals, this attachment brings the craftsmanship of blade makers right to your home.

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Manufacturer	Work Sharp
Part number	WSSAKO81112
Item Weight	90.7 g
Product Dimensions	21.59 x 6.35 x 16.51 cm; 90.72 g
Item model number	WSSAKO81112
Size	5 Belts
Color	Black
Style	Regular Blade Grinder Attachment
Material	Synthetic
Power source type	Hand
Item Package Quantity	1
Number Of Pieces	1
Grit Description	Coarse
Specification met	certified frustration-free
Included components	Blade Grinding Attachment
Batteries Included?	No
Batteries Required?	No

Work Sharp Blade Grinder Attachment for Ken Onion Edition MK.1 Knife and Tool Sharpener (WSSAKO81112)

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