Looks like it is slightly less expensive here, with possible free shipping to boot.
Well, you get free shipping here too if you have Amazon prime and login using the “Login with Amazon” button. But yeah, still cheaper. Poking the Tools team.
Actually, I might be mistaken, when I read it earlier I thought it was listed as $19.99 here in Woot!, But today it’s reading $16.99. I guess misread it when I was doing the price comparison.