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2pcs Metric Right Hand Thread Tap And Die Set M28 M28x2 M28x1.5 M28x1 Machine Straight Flute Plug Taps Dies Sets M28x3 Cut Tools - Tap & Die - AliExpress
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2pcs Left Hand Tap and die set M3 M4 M5 M6 LH Metric Fine Thread Straight Flute taps Round Dies Suit M8 M10 M12 M14 M16 M18 M20 - AliExpress
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High Speed Steel Tap & Die Set QR-23L.H., 23 Piece, Left Hand Inch, 1/4" Thru 1/2" - 14-000-923 - Penn Tool Co., Inc
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HSS Left Hand Thread Tap and die set M3 M4 M5 M6 M7 M8 M14 M15 M16 M18 Straight Flute taps Dies Suit M9 M10 M11 M12 M13 M19 M20 - AliExpress
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