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2Pcs Tap and Die Set, 1/2-20 UNF Left Hand Thread Tap & round Die, Tapping Threa
- Item No : 317087425230
- Condition : New
- Brand : No brand Info
- Seller : khirblac-0
- Current Bid : US $26.57
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* Item Description
- Thread Size: 1/2-20 UNF (Left Hand); Square Shank Width: 6.8mm / 0.27"; Thread Length: 25mm / 0.98";. The higher the hardness, the slower the speed. The force must be uniform in tapping operations. Drill the holes with a twist drill bit first, then tap with a thread tap.
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