These are the top 2 Sharpening Stones listings found from analyzing all discussions on Reddit that mention any Amazon listing.
#1
KING KW65 1000/6000 Grit Combination Whetstone with Plastic Base
Tools & Home Improvement
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Power & Hand Tools
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Hand Tools
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Sharpening Stones

King
0 reddit posts
56 mentions
56 mentions
#2
Ha No Kuromaku Ceramic Whetstone Medium Grit #1000
Tools & Home Improvement
/
Power & Hand Tools
/
Hand Tools
/
Sharpening Stones

Shapton
0 reddit posts
42 mentions
42 mentions