Click for larger image and other views Image is representative of the product family. Select individual products in the table below for more specific images and product specifications

How can we improve our images or Product Specifications?

Union Butterfield 1546(NPTF) High-Speed Steel Pipe Tap, Uncoated (Bright) Finish, Round Shank with Square End

Be the first to review this item

Product Specifications
Manufacturer Series #
1546(NPTF)
Surface Coating
Uncoated (Bright)
Shank Type
Round With Square End
Pitch Diameter Limit
6H
Material Type
High Speed Steel
Thread Type
NPTF
UNSPSC Code
31201519
Chamfer Type
Pipe Tap
Brand Name
Union Butterfield

This item is no longer available

These items ship for FREE with 2-Day Shipping on orders over $50. (Details)

Want it delivered on Thu, Sep 18? Order in-stock items in the next 12 hrs 17 mins and choose One-Day Shipping at checkout.

  • Share
Currently showing 1-8 of 8
Thread Size Number of Flutes Shank Diameter Length of Threads Overall Length Mfr Part # ASIN

The Amazon Standard Item Number (ASIN) uniquely identifies
the item in the AmazonSupply.com (and Amazon) catalog.

Available

If an item is currently out of stock, but has an estimated lead time, you can place an order now and we will ship it as soon as it is available.
You can also order more than we currently have in stock.
Read more about back orders in our help section.

Price  
All All All All All      
Currently showing 1-8 of 8
1/16"-27 4 0.313" 0.6875" 2.125" 1012880 B003JY63RS yes $23.65 Buy Options
1/8"-27 4 0.438" 0.75" 2.125" 1012881 B003JY63UA yes $23.30 Buy Options
1/8"-27 4 0.313" 0.75" 2.125" 1012889 B003JY63UK yes $22.63 Buy Options
1/4"-18 4 0.563" 1.0625" 2.4375" 1012882 B003JY63TQ yes $24.52 Buy Options
3/8"-18 4 0.7" 1.0625" 2.5625" 1012883 B003JY63W8 yes $27.91 Buy Options
1/2"-14 4 0.688" 1.375" 3.125" 1012884 B003JY63SW yes $40.69 Buy Options
3/4"-14 5 0.906" 1.375" 3.25" 1012885 B003JY63VO yes $55.89 Buy Options
1"-11.5 5 1.125" 1.75" 3.75" 1012886 B003JY63V4 yes $83.35 Buy Options

Key Features

  • Pipe tap cuts threads in pipes and pipe fittings
  • NPTF (National Pipe Taper Fuel) threads for leak-free seals without the use of sealants
  • Straight flutes to cut threads in through holes and blind holes
  • High hook and deep flutes to manage long curly chips
  • Round shank with square end helps to minimize rotation in the tool holder

Product Description

The Union Butterfield 1546(NPTF) uncoated, high-speed steel pipe tap has straight flutes with high hook and a round shank with a square end, and is used to create NPTF (National Pipe Taper Fuel) right-hand threads in a range of materials, with strength in carbon steel and alloy steel. NPTF thread, also called Dryseal American National Standard Taper Pipe Thread, is an ANSI-standard thread configuration designed for a leak-free tapered pipe joint that is created by an interference fit between engaged threads rather than by the use of sealants. The straight flutes are suitable for threading through holes (extending through the workpiece) and blind or bottoming holes (with only one opening). This tool has deep flutes with high hook to manage long curly chips.

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 1546(NPTF) series, taps with nominal diameters of 1/16” to 1/2” have four flutes and taps with nominal diameters of 3/4” and 1” have five flutes. In this series all taps have semi-bottoming chamfers. This tap conforms to ANSI standards and is suitable for normal pipe thread tolerance.

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.

How can we improve our Product Description?

Customer Reviews

There are no customer reviews yet.

Be the first to review this item

Go to the HomePage

Order by Phone
M-F 8am-8pm ET, Sat-Sun 8am-5pm ET 800-220-4242

My Account| Returns| Help

Website Feedback| Contact Us| Sell on AmazonSupply| Become an Affiliate

Privacy Notice| Conditions of Use

Follow Us 

© 2014 Amazon.com, Inc. and its affiliates.