The BullseyeBore, that laser gizmo we told you about last week, which helps you drill holes straight, has gone live on Kickstarter. Within a couple days it blew past its $20,000 target, reaching $170,000-plus at press time with 28 days left to pledge.

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Now that the campaign's live, we've got better images of the thing, and more details on its development. The device did take a decade to develop, including "well over 300 prototypes" tested on "several hundred different drill and chuck combinations" to ensure it would fit well, no matter the drill.

In case it's not obvious how it works, it projects a concentric ring of circles. When everything looks round and equidistant, you're square...

...and it's easy to see when you're not.

The campaign is selling these in pairs, with one unit designed to work with 2" to 5" bits, and another designed to deal with bits up to 8" in length. Additionally, you can choose between red or green lasers, with the green being easier to see, whereas the red uses less battery power. (Both units run on a pair of coin cell batteries.) Buy-in starts at $129 a pair, and they expect to begin shipping in March.