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Amazon.com: Ruko HSS Hand Tap Set, UNC, DIN 352, Ground, Bright Finish, 1/4 inches Nominal Thread Size, 50.0 mm Length, 3 Pieces, R246014UNC : Industrial & Scientific
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RUKO 44 pcs. Thread Cutting Tool Set HSS M3 - M12 in metal case MADE IN GERMANY 4007140026255 | eBay
![Amazon.com: Ruko HSS Hand Tap Set, UNC, DIN 352, Ground, Bright Finish, 1/4 inches Nominal Thread Size, 50.0 mm Length, 3 Pieces, R246014UNC : Industrial & Scientific Amazon.com: Ruko HSS Hand Tap Set, UNC, DIN 352, Ground, Bright Finish, 1/4 inches Nominal Thread Size, 50.0 mm Length, 3 Pieces, R246014UNC : Industrial & Scientific](https://m.media-amazon.com/images/I/51Jt9UghdAL.jpg)