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Dormer E035 Powdered Metal Spiral Point Threading Tap, Gold Oxide Finish, Round Shank With Square End, Plug Chamfer, 3 Flute, 1"-12 Thread Size

Product ID : 38340367


Galleon Product ID 38340367
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About Dormer E035 Powdered Metal Spiral Point Threading

The Dormer MTT-X E025/MTT-X E035 powdered-metal steel spiral point tap has a round shank with a square end, gold oxide finish, and a plug chamfer, and is used to create right-hand threads in a range of materials, with best performance in steel, copper, brass, aluminum, and magnesium. 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 it suitable for threading through holes (extending through the workpiece). Gold oxide is a low-temperature heat treatment that reduces grinding stress within the tool. A 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). Powdered-metal steel offers performance that approaches that of solid carbide tools but with the toughness and shock-resistance of high-speed steel. 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 Dormer MTT-X E025/MTT-X E035 series, taps in machine screw sizes 6 to 12 have two flutes, taps with nominal diameters of 1/4” to 3/8” are available with two or three flutes, taps with a nominal diameter of 7/16” have three flutes, those with nominal diameters of 1/2” are available with two or three flutes, and those with nominal diameters of 9/16” to 1” have three flutes. All taps in both series have plug chamfers. This tap conforms to ANSI standards and can create threads to a depth two-and-a-half times its diameter. It is suitable for the 3B tolerance class: 3B produces close-tolerance fasteners that resist loosening, as i