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toolman946 via CraftKB.com toolman946 via CraftKB.com is offline
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Default How can I automatically tap 500 holes in 5/16-18 thread sizeusing a hand drill or drill press?

A few years back Ryobi offered a bench top, swivel head drill press. It
wasn't very expensive 'cuz it wasn't a heavy industrial machine, but the
swivel feature was kind'a sweet and it's sturdy enough for the work you
describe . You might find one on ebay that would work well to horizontally
tap those long lengths.

Cheers.

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