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Industrial & Scientific > Cutting Tools > Threading Taps > Spiral Flute Taps > B003JY6BG6
  1. Union Butterfield 1587(UNC) High-Speed Steel Spiral Flute Tap, High-Helix, Uncoated (Bright) Finish, Round Shank With Square End, Bottoming Chamfer, #6-32 Thread Size
    Union Butterfield 1587(UNC) High-Speed Steel Spiral Flute Tap, High-Helix, Uncoated (Bright) Finish, Round Shank With Square End, Bottoming Chamfer, #6-32 Thread Size
    Union Butterfield 1587(UNC) High-Speed Steel Spiral Flute Tap, High-Helix, Uncoated (Bright) Finish, Round Shank With Square End, Bottoming Chamfer, #6-32 Thread Size
    Union Butterfield 1587(UNC) High-Speed Steel Spiral Flute Tap, High-Helix, Uncoated (Bright) Finish, Round Shank With Square End, Bottoming Chamfer, #6-32 Thread Size
    Union Butterfield 1587(UNC) High-Speed Steel Spiral Flute Tap, High-Helix, Uncoated (Bright) Finish, Round Shank With Square End, Bottoming Chamfer, #6-32 Thread Size
    Union Butterfield 1587(UNC) High-Speed Steel Spiral Flute Tap, High-Helix, Uncoated (Bright) Finish, Round Shank With Square End, Bottoming Chamfer, #6-32 Thread Size
    Image(s) provided for illustrative purposes and may differ from the actual product
  2. Union Butterfield 1587(UNC) High-Speed Steel Spiral Flute Tap, High-Helix, Uncoated (Bright) Finish, Round Shank With Square End, Bottoming Chamfer, #6-32 Thread Size

    [B003JY6BG6]
    Delivery: 10-20 Working Days
    Customer Ratings (1 reviews)
    Price R461.00

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This item may be available in a different size, colour, scent, version or platform. Click below to be directed to product options:

Variations
Product Description

  • 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
Additional Information

The Union Butterfield 1587(UNC)/1587(UNF)/1588(UNC)/1588(UNF) uncoated, high-speed steel spiral flute tap has a round shank with a square end and a high-helix design, and is used to create right-hand threads in a range of materials with strength in brass, bronze, aluminum and unalloyed magnesium. It is available in two different ANSI thread specification standards: UNC (Unified Coarse) and UNF (Unified Fine). The spiral flutes of this tap pull chips back from the tip of the tool, up and out the hole to prevent clogging; the higher helix angle (52 degrees) further improves chip removal. These characteristics make the tap suitable for blind or bottoming holes .

Right-hand threads are designed to tighten when a head or nut is rotated clockwise (the most common threading direction). High-speed steel (HSS) is a common general-purpose steel for cutting tools and is compatible with a variety of materials. With no coating or surface treatment, this uncoated tool can be used on a broad range of materials and provides an economical alternative to coated tools. The round shank with square end helps to minimize rotation in the tool holder. This tool can be used in machines, such as drill presses or lathes, or with hand tools such as tap wrenches.

In the Union Butterfield 1587(UNC)/1587(UNF) series, taps with machine-screw sizes of 3 to 6 have two flutes, and machine-screw sizes 8 to 12 have three flutes. In the 1588(UNC)/1588(UNF) series, all taps have three flutes. In both series taps are available with a variety of chamfers. This tap conforms to ANSI standards and can create threads to a depth 2 ½ times its diameter. The 1588(UNC)/1588(UNF) series tap is suitable for ANSI 2B and 3B tolerance classes: 2B is an average quality fit for commercial and industrial fasteners; 3B produces close-tolerance fasteners that resist loosening, as in aerospace applications. The 1587(UNC)/1587(UNF) series tap is suitable for the ANSI 3B tolerance class.

Taps produce internal threads in previously formed holes and can be used in machines (such as drill presses) or with hand tools. Common types of taps include hand taps, spiral point taps, spiral flute taps, thread forming taps, and pipe taps. Hand taps (straight-flute taps) collect chips in the straight flutes of the tool; spiral point taps push chips through holes ahead of the tool; and spiral flute taps pull chips back from the tip of the tool, up and out the hole. Thread forming taps, also known as cold forming taps, press rather than cut to create threads in a drilled hole, and no chips are created. Pipe taps create threads in pipes and pipe fittings. Each thread type designates a thread profile and each type is identified with an abbreviation. In the U.S. and Canada, the Unified Thread Standard is the dominant thread type, including UNC (Unified Coarse), UNF (Unified Fine), and NPT (National Pipe Taper) threads, among others.

Precision Dormer manufactures cutting tools under the following brands: Precision Twist, Dormer, and Union Butterfield. The company has locations around the world, and provides tools adhering to ANSI, NAS, and DIN standards.

Similar Products

YG-1 F4 Series Vanadium Alloy HSS Spiral Flute Tap, Steam Oxide, Round Shank with Square End, Bottoming Chamfer, 1/4
Specifications

Country
USA
Binding
Misc.
Brand
Union Butterfield
EAN
0698464024047
Label
Precision Dormer
Manufacturer
Precision Dormer
Model
1010892
MPN
15876-32NO3
NumberOfItems
1
PartNumber
15876-32NO3
Publisher
Precision Dormer
Size
#6-32 Thread Size
Studio
Precision Dormer
ReleaseDate
0000-00-00
Most Helpful Customer Reviews

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.
Please Note

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