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  • Union Butterfield 1587(UNC)/1587(UNF)/1588(UNF)1588(UNF) High-Speed Steel Spiral Flute Tap, High-Helix, Uncoated (Bright) Finish, Round Shank with Square End
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Union Butterfield 1587(UNC)/1587(UNF)/1588(UNF)1588(UNF) High-Speed Steel Spiral Flute Tap, High-Helix, Uncoated (Bright) Finish, Round Shank with Square End

Available in multiple versions

1 customer review

Price: $14.70 - $47.78
Product Specifications
Brand Name Union Butterfield
Material Type High Speed Steel
Finish Types Uncoated (Bright)
Shank Type Round With Square End
UNSPSC Code 27112806

The Union Butterfield 1587(UNC)/1587(UNF)/1588(UNC)/1588(UNF) uncoated, high-speed steel spira... Read full product description

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#10-24 B003JY6B7K
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#10-32 B003JY6BIE
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#10-32 B003JY6BJ8
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#3-48 B003JY6BAW
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#5-40 B003JY6BE8
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#6-32 B003JY6BG6
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#8-32 B003JY6BHK
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1/2"-13 B003JY6BJS
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1/2"-13 B003JY6BKM
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1/2"-20 B003JY6BQG
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Product Features

  • Spiral flute tap design pulls chips back from the tip of the tool and out of the hole to prevent clogging
  • Spiral flutes for creating threads in blind holes
  • Higher helix angle improves chip removal
  • Available in UNC (Unified Coarse) or UNF (Unified Fine) right-hand thread options for different applications
  • Round shank with square end helps to minimize rotation in the tool holder

Product Details

  • Shipping Information: View shipping rates and policies
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B004J4VUVQ
  • Average Customer Review: 4.0 out of 5 stars  See all reviews (1 customer review)
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Most Helpful Customer Reviews

1 of 1 people found the following review helpful By E. Burdick on September 19, 2013
Size: #4-40 Verified Purchase
If you tap aluminum a lot, this is a good product for hand tapping. The spiral flutes clear out the waste very well -- much better that straight flute taps. These are not super strong taps, so I would not use them for machine tapping. But for hand tapping, with just a little finesse and some lubrication, I have had good results.

Update: Though these are great taps, I have recently started using roll form taps for these small sizes in aluminum. I use these in an educational environment, and my students have not broken a single roll form tap.
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