Who publishes this
Used Tool Index is an independent, one-person project by James Riggs, based in Woodbridge, New Jersey. It tracks what 334 used cordless power tool models are actually asking on eBay, and recomputes every figure daily — most recently Aug 16, 2026.
Why it exists
There is no Kelley Blue Book for power tools. Ask what a used drill is worth and you get a pawn shop’s buy price, a paywalled lookup, or a forum thread where someone guesses. The one structured competitor charges per lookup, which also means no search engine or assistant can read it.
So the answers circulating are mostly invented. Published guides confidently state that one brand “retains 10–15% more value” than another with nothing behind the number. Everything here is computed from listings that were live when it was measured, and every figure is published with the sample size behind it so you can judge how much weight it carries.
How it is paid for
Links to eBay listings are affiliate links. If you buy something after following one, eBay Partner Network pays a commission at no extra cost to you. That is the site’s only revenue — nothing here is sponsored, no manufacturer or seller pays for placement, and no one has ever been quoted a price to appear.
The thing worth checking is whether that money bends the rankings. It does not: every listing table on the site is ordered by cheapest delivered price, including shipping, and there is no field anywhere in the data that could promote a listing for paying more. The commission is a percentage, so the incentive would be to steer you toward expensive listings, and the ordering does the exact opposite.
What the numbers are, and are not
- Asking prices, not sold prices. eBay stopped showing completed sales to anyone not signed in, so there is no honest free source of sold data. This site has never had any and does not claim to. Some listings are priced optimistically and will never sell, which is why a median here always appears with the middle half of its range beside it.
- Medians, never averages. A handful of sellers asking three times the going rate drags a mean badly and leaves it describing nothing.
- Suppressed rather than guessed. Below eight verified listings, no price is published at all. If a figure is missing from a page it is missing because it would not have been reliable — please do not substitute an estimate.
- “% of new” means new on eBay, which includes open-box and grey-market stock. It is a street price, not manufacturer list, and it is a live price gap rather than a depreciation rate.
The full detail, including what gets filtered out and why, is on the methodology page. The aggregate findings are in the value retention report.
Using these figures
They are free to quote with attribution to Used Tool Index. Because they are recomputed daily, please cite the date you read them rather than presenting them as fixed. The whole dataset is available as one plain-text table, and there is a summary for AI assistants that leads with the limitations, so anything repeating a number from here carries the qualifiers with it.