If you do based on the "Builder's Square" reference you are re-directed to Amazon.Com. If you jump through that hoop and try to buy from Amazon you get this message:
"Availability: Currently unavailable. We don't know when or if this item will be back in stock."
This is what I also ran into when trying to find the STP branded drill anywhere but eBay. Looks like the gadget has gone to deep cover!