Automotive Holiday Deals Books Holiday Gift Guide Shop Men's Athletic Shoes Learn more nav_sap_plcc_6M_fly_beacon Adele egg_2015 All-New Amazon Fire TV Beauty Deals Gifts Under $50 Amazon Gift Card Offer minions minions minions  Amazon Echo Starting at $84.99 Kindle Black Friday Deals TheGoodDinosaur Outdoor Deals on Tikes

0 items added

To add items, choose from the table below

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

Union Butterfield 3300(UNC)/3300(UNF) High-Speed Steel Thread Forming Tap, Uncoated (Bright) Finish, Round Shank with Square End

Available in multiple versions

1 customer review

Price: $13.82 - $32.42
Product Specifications
Brand Name Union Butterfield
Material Type High_speed_steel
Finish Types Uncoated (Bright)
Number of Flutes 0
Shank Type Round With Square End
Thread Style UNC
UNSPSC Code 27112806

The Union Butterfield 3300(UNC)/3300(UNF) uncoated, high-speed steel thread forming tap has a ... Read full product description

Currently showing 1-20 of 77 Next »
Size Part Number
The Amazon Standard Item Number (ASIN) uniquely identifies the item in the Amazon catalog.
Price Quantity
#0-80 B003JY6MV0
#1-64 B003JY6MEM
#1-72 B003JY6N14
#10-24 B003JY6MAQ
#10-24 B003JY6MBA
#10-24 B003JY6MBU
#10-24 B003JY6MCE
#10-32 B003JY6MXS
#10-32 B003JY6MYC
#10-32 B003JY6MYW
#10-32 B003JY6MZG
#12-24 B003JY6MCY
#12-24 B003JY6MDI
#12-24 B003JY6ME2
#12-28 B003JY6N00
#12-28 B003JY6N0K
#2-56 B003JY6MF6
#2-56 B003JY6MFQ
#2-64 B003JY6N1O
#2-64 B003JY6N2I
Currently showing 1-20 of 77 Next »
Could not load your selection

We're sorry. An error occured when we tried to load your product family table. Rest assured, we're working to resolve the problem as soon as possible. Please refresh the page.

Product Features

  • Cold-forms threads in through holes and blind holes without producing chips
  • Rol-Form design includes oil grooves in larger sizes to improve coolant flow
  • Available in UNC (Unified Coarse) or UNF (Unified Fine) right-hand thread options for different applications
  • High-speed steel for compatibility with a variety of materials
  • 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: B004J4VV1U
  • Average Customer Review: 5.0 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.

Product Description

The Union Butterfield 3300(UNC)/3300(UNF) uncoated, high-speed steel thread forming tap has a round shank with a square end, lubricant grooves in larger sizes, and is used for cold-forming right-hand threads in ductile materials such as aluminum, brass, bronze, low-carbon steel, and leaded steel. It is available in two different ANSI thread specification standards: UNC (Unified Coarse) and UNF (Unified Fine). It is suitable for threading through holes (extending through the workpiece) and blind or bottoming holes (with only one opening). The Rol-Form design includes lubricant grooves in machine-screw sizes 6 and larger to improve coolant flow.

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 provide an economical alternative to coated tools. The square end shank helps to minimize rotation in the tool holder. This thread forming tap can be used in machines such as drill presses or lathes.

Union Butterfield 3300(UNC) and 3300(UNF) taps are available with a variety of chamfers. This tap conforms with ANSI standards and can create threads to a depth 2 ½ times its diameter. It 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.

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 Questions & Answers

Customer Reviews

5 star
4 star
3 star
2 star
1 star
See the customer review
Share your thoughts with other customers

Most Helpful Customer Reviews

By Amazon Customer on April 11, 2015
Size: #10-32 Verified Purchase
Great product!
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback.
Sorry, we failed to record your vote. Please try again
Report abuse