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uxcell 1/4-28 UNF Straight Flute Tap Left Hand and 5.4mm Twist Drill Bit Set, Titanium Plated High Speed Steel Drilling Bit Machine Threading Tap - Amazon.com
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OSG - Straight Flute Tap: 1/4-28 UNF, 4 Flutes, Bottoming, 2B Class of Fit, Solid Carbide, Bright/Uncoated - 86086881 - MSC Industrial Supply
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Burkit 1/4 inch-28 UNF Tap and Die Set Left Handed 1/4 x 28 UNF Machine Tap and Round Die : Amazon.de: DIY & Tools
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Amazon.com: uxcell Machine Tap, 1/4-28 UNF 2B Class High Speed Steel Screw Thread Threading Milling Taps Tapping Tool 2pcs : Industrial & Scientific
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