Union Butterfield 1578(unc) High-speed Steel Spiral Point Tap, Screw Thread

US $240

USA, United States
Jun 13th

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Union Butterfield 1578(UNC) High-Speed Steel Spiral Point Tap, Screw Thread Insert, Uncoated (Bright) Finish, Round Shank With Square End, H3 Tolerance, 1/4"-20 Thread Size Item Description Spiral point tap pushes chips ahead of tool to reduce clogging Spiral point tap and straight flutes for cutting threads in through holes Oversized tap for producing threads that will receive a helical coil wire screw thread insert (STI) of the same nominal size and pitch. Relieved-style design reduces friction between tap and workpiece for reduced tool wear Plug chamfer for easier starting and correct perpendicular alignment Features The Union Butterfield 1578(UNC)/1578(UNF) uncoated, high-speed steel spiral point tap has a relieved-style design, straight flutes, and a round shank with a square end, and is used in a range of materials to tap oversized thread that will receive a helical coil wire screw thread insert (STI). It is available in two different ANSI thread specification standards: UNC (Unified Coarse) and UNF (Unified Fine). The spiral point of this tap (sometimes referred to as a ?gun tap?) pushes chips ahead of the tool and the straight flutes reduce clogging. Both characteristics make this tool suitable for threading through holes (extending through the workpiece). Relieved-style design reduces the friction between tap and workpiece for reduced tool wear. A screw thread insert is used to replace stripped, damaged, or weakened internal threads. STI taps are oversized so they can tap threads that will receive a helical coil wire STI of the same nominal size and pitch. The plug chamfer distributes cutting to ease tapping at the beginning of the hole and to maintain correct perpendicular alignment with the workpiece. 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 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 1578(UNC) and 1578(UNF) tap series, all taps have two flutes and plug chamfers. This tap conforms to ANSI standards and can create threads to a depth 1 ? 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 used for greater resistance to stripping, 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. Additional Information Manufacturer: Precision Dormer Shipping Weight: 6 Product Dimensions: Width: 0.50 Length: 3.50 Height: 0.40 Shipping Details Depending on your location and on package weight, items will be shipped by USPS, UPS, FedEx, DHL, or other carriers as necessary. All stock is at our USA warehouses. Most orders ship within 24 hours of processing your payment unless stated differently. Check our feedback to see how our customers love the FAST shipping we offer! Shipping is always free! 30 Days Return & Refund Policy We provide a 30 days return/exchange policy for our products. The buyer can choose between a refund or an exchange to his/her product. In case of defectives found, only factory defects are accepted as the reason of return. The package of the returned item(s) must be completely intact, and all accessory(s) inside the package must be original and in perfect condition. We do not cover the postage costs for returned defective items. Items returned must be received within 30 days from purchase. No refund or replacement is issued after this period of time. Please allow up to 7 working days for your return to be processed after it is received by us. We are extremely fair, and in the rare event of something out of the ordinary happening, we will gladly work with you to find a solution. Our Guarantee Your satisfaction is guaranteed! We offer a 100% Satisfaction Guarantee on all sales. If you are not happy with your purchase for any reason, please contact us within seven days of receipt of your item, or email us to share your concerns. As mentioned before we are extremely fair and will happily work with you to find a solution to any problem. 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