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Union Butterfield 1700(M) High-Speed Steel Hand Tap, Uncoated (Bright) Finish, Round Shank with Square End

Available in multiple versions

5 out of 5 stars 3 customer reviews

Price: $10.11 - $175.10
Product Specifications
Brand Name Union Butterfield
Material Type High Speed Steel
Finish Types Uncoated (Bright)
Cutting Direction Right-Handed
Manufacturer Series Number 1700(M)
Shank Type Round With Square End
Thread Style Metric
UNSPSC Code 27112806

The Union Butterfield 1700(M) uncoated, high-speed steel hand threading tap has straight flute... See more product details

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M1.6-0.35 B003JY6EJK
M1.8-0.35 B003JY6ELI
M10-1.25 B003JY6ENQ
M10-1.5 B003JY6ES6
M11-1.5 B003JY6ETU
M12-1.25 B003JY6EUO
M12-1.75 B003JY6EWW
M14-1.5 B003JY6EYK
M14-2 B003JY6F0S
M16-1.5 B003JY6F2G
M16-2 B003JY6F44
M18-2.5 B003JY6F7Q
M2-0.4 B003JY6FPI
M2.3-0.45 B003JY6F9Y
M2.5-0.45 B003JY6FAI
M2.6-0.45 B003JY6FDA
M20-1.5 B003JY6FF8
M20-2.5 B003JY6FFS
M22-2.5 B003JY6FJY
M24-2 B003JY6FL2
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Product Features

  • Hand threading tap 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: B004J4VUZ2
  • Average Customer Review: 5.0 out of 5 stars  See all reviews (3 customer reviews)
  • Product Warranty: For warranty information about this product, please click here

Product Description

The Union Butterfield 1700(M) uncoated, high-speed steel hand threading tap has straight flutes and a round shank with a square end, 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 1700(M) series, taps with nominal diameters of 1.6 mm and 1.8 mm have two flutes, those with nominal diameters of 2 mm to 3.5 mm have three flutes, and those with nominal diameters of 4 mm to 36 mm have four flutes. Taps in this series are available with a variety of chamfers. This tap 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.

Customer Reviews

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Top Customer Reviews

Size: M12-1.25 Verified Purchase
I used this tap to install a trailer hitch on a 9-year-old 2004 Toyota Sienna. I spent more time than I'm willing to admit to in public with liquid wrench, wire bushes, and a real wrench trying to get the threads cleared. I ordered this tap, and was able to clear all 6 holes in just a few minutes. This tapered tap found the threads under the corrosion with only a little bit of gentle finagling. I have a sliding-bar tap wrench, and was able to turn it with one hand in a confined space using one hand. If I'd had a proper tap like this one when I started, I could have saved myself a lot of time and frustration.
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Size: M12-1.25
Thanks to Amazon and "Solved My Problem!" Lucas from Urbana, I found this product. Similar to him, I was struggling to install a hitch on a Toyota Sienna. My 2006 minivan had 7 years of rust and crud in the threads, and I gave up after about 30 minutes with wire brushes, PB Blaster, and using a power driver to attempt to force the bolts into the threads. I read Lucas's review and ordered this tap immediately. Unfortunately my tap handle was too small for this tool, but after a trip to HD for a larger handle (Irwin Hanson, fits up to 12 mm, and has a socket wrench drive plus a sliding handle) [...] I was good to go.

I started the tap into the threads by hand, then switched to my power driver and 3/8" drive. I NEVER would have been able to get the threads clean by hand--there was a tremendous amount of rust that I cleaned off with a rag and PB Blaster during each tap pass. I was able to install EASILY the six hitch bolts by hand after using this tool for 15 minutes.I also noticed that HD didn't carry this size tap which was the weldnut size used on Toyota Sienna for several years, so kudos to Amazon where it seems you can find anything. And thanks to Lucas for the useful review.

I believe the Amazon product link for the T-handle that I bought is this one: Irwin Tools 4935053 PTS Adjustable Tap Socket Medium but I can't see the details or size on this link. It needs to hold a 12 mm tap.
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Size: M12-1.25 Verified Purchase
Worked perfect, I am a machinist / toolmaker and was impressed with the performance tapping 4140 medium carbon work hardening material.
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