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Pipe Tap, 1"X11-1/2, Taper, NPT
  • Zoro #: G0072593
  • Mfr #: 15441X11.1/2
  • Tap Thread Size: 1"X11-1/2
  • Standards: ANSI
  • Tap Style: Pipe
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Precision Twist Drill #15441X11.1/2 Specifications

  • Zoro #: G0072593
  • Mfr #: 15441X11.1/2
Tap Thread Size: 1"X11-1/2 Standards: ANSI
Tap Style: Pipe Thread Direction: Right Hand
Tap Thread Type: NPT Tap Chamfer: Taper
Tap Material: High Speed Steel Item: Pipe Tap
Country of Origin (subject to change): United States
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The Union Butterfield 1544(NPT) nitride finish high-speed steel pipe tap has straight flutes and a round shank with a square end, and is used to create NPT (National Pipe Taper) right-hand threads in a range of materials, with strength in cast iron, high-carbon steel, and alloy steel. NPT thread is an ANSI-standard thread configuration designed to be used with a sealant to create a leak-free tapered pipe joint. The straight flutes are suitable for threading through holes (extending through the workpiece) and blind or bottoming holes (with only one opening). Nitride finish offers increased durability and abrasion resistance, and retards the tendency of softer materials to load or cling onto the tool; these characteristics make it a good choice for abrasive materials like cast iron.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. 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 1544(NPT) series, taps with nominal diameters of 1/16? to 1/2? have four flutes, taps with nominal diameters of 3/4? to 1 1/4? have five flutes, and taps with nominal diameters of 1 1/2? and 2? have seven 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.


Restrictions and Compliance

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