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Union Butterfield 1700S High-Speed Steel Hand Tap Set, Uncoated (Bright) Finish, Round Shank with Square End, 3-Piece Set (1 Taper, 1 Plug, 1 Bottoming Chamfer)

Available in multiple versions

2 customer reviews

Price: $18.86 - $122.83
Product Specifications
Brand Name Union Butterfield
Material Type High_speed_steel
Finish Types Uncoated (Bright)
Number of Items 3
Chamfer Type Set
Cutting Direction Right-Handed
Manufacturer Series Number 1700S
Shank Type Round With Square End
Thread Style Metric
Tolerance Held 6H
UNSPSC Code 27112806

The Union Butterfield 1700S uncoated, high-speed steel three-piece hand threading tap set (inc... Read full product description

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Price Quantity
M10-1.25 B003JY6GBQ
M12-1.25 B003JY6GCU
M12-1.75 B003JY6GDE
M14-2 B003JY6GEI
M16-2 B003JY6GF2
M18-2.5 B003JY6GFM
M2-0.4 B003JY6GIO
M2.5-0.45 B003JY6GG6
M20-2.5 B003JY6GHK
M3-0.5 B003JY6GKC
M3.5-0.6 B003JY6GJI
M4-0.7 B003JY6GLG
M5-0.8 B003JY6GMA
M6-1 B003JY6GN4
M7-1 B003JY6GO8
M8-1 B003JY6GP2
M8-1.25 B003JY6GPW
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Product Features

  • Hand threading tap set with straight flutes cuts threads in through holes and blind holes
  • Produces ANSI standard right-hand threads in metric sizes
  • High-speed steel is compatible with a variety of materials
  • Uncoated (bright) tools have no additional surface treatment or coating, for use on a broad range of materials
  • Round shank with square end allows tap to be used in hand or power-driven applications

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: B004J4VUZC
  • Average Customer Review: 5.0 out of 5 stars  See all reviews (2 customer reviews)
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

Product Description

The Union Butterfield 1700S uncoated, high-speed steel three-piece hand threading tap set (including tapering, plug, and bottoming chamfers) has straight flutes and round shanks with square ends, and is used to create metric right-hand threads in a range of materials. The straight flutes are suitable for threading through holes (extending through the workpiece) and blind or bottoming holes (with only one opening).

Right-hand threads are designed to tighten when the 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 makes it suitable for hand or power-driven applications. 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 1700S series, taps with nominal diameters of 2 mm to 3 mm have three flutes and those with nominal diameters of 3.5 mm to 20 mm have four flutes. This tap set conforms to ANSI standards and can create threads to a depth 1 ½ times its diameter. It is suitable for the ANSI 6H tolerance class: 6H is used for a normal length of thread engagement and medium tolerance quality.

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.

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Most Helpful Customer Reviews

By Doug Myers on November 14, 2012
Size: M7-1 Verified Purchase
Had to tap through some hard steel in a location in which I did not want to over-drill. Hand-tapping was the only way to do it without risk of unintended or over-drill damage, and these worked great.
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Size: M8-1.25 Verified Purchase
Looking for a good set of metric taps ,and this is the best I have seen for the price. Excellent for blind hole tapping and good thread formation.
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