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by Dormer

Dormer MTT-X E044 Cobalt Steel Spiral Flute Threading Tap, Coolant Through, Gold Oxide Finish, Round Shank With Square End, Modified Bottoming Chamfer

Available in multiple versions

Price: $41.79 - $217.88
Product Specifications
Brand Name Dormer
Material Type Cobalt Steel
Finish Types Gold Oxide
Chamfer Type Semi-Bottoming
Manufacturer Series Number MTT-X E044
Shank Type Round With Square End
Thread Style Metric
Tolerance Held 6H
UNSPSC Code 27112806

The Dormer MTT-X E044 cobalt steel spiral flute tap has a round shank with a square end, gold ... Read full product description

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M10-1.5 B003JY6NAA
M12-1.75 B003JY6NAU
M16-2 B003JY6NBO
M20-2.5 B003JY6NBY
M8-1.25 B003JY6NCI
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Product Features

  • Spiral flutes for creating threads in blind holes
  • Spiral flute tap pulls chips back from the tip of the tool and out of the hole to prevent clogging
  • Gold oxide finish reduces grinding stress within the tool
  • Cobalt steel resists abrasion and high temperatures, with higher feed rates compared to high-speed steel; for tough machining applications
  • Coolant-through channel with axial outlet for improved lubricant flow in blind hole tapping

Product Details

  • Shipping Information: View shipping rates and policies
  • Domestic Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B004J4VUAW
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

Product Description

The Dormer MTT-X E044 cobalt steel spiral flute tap has a round shank with a square end, gold oxide finish, an axial coolant-through channel, and a modified bottoming chamfer, and is used to create metric right-hand threads in a number of materials, with best performance in alloy steel. The 15-degree spiral flutes of this tap pull chips back from the tip of the tool, up and out of the hole to prevent clogging, making it suitable for blind or bottoming holes (with only one opening). The internal coolant channel of this tap has an axial outlet at the tip of the tool that directs lubricant flow ahead of the tool; this feature is also most suited for bottoming holes. Gold oxide is a low-temperature heat treatment that reduces grinding stress within the tool. The modified bottoming chamfer on this tool has additional length to reduce chip load, add tool life in difficult-to-machine materials, and permit higher tapping speeds.

Right-hand threads are designed to tighten when a head or nut is rotated clockwise (the most common threading direction). Cobalt steel is used for tough machining applications because it resists abrasion and high cutting temperatures and has higher feed rates compared to 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 E044 series, taps with nominal diameters of 8 mm to 12 mm have three flutes and those with nominal diameters of 16 mm and 20 mm have four flutes. All taps have modified bottoming chamfers. This tap conforms to ISO 529 standards and can create threads to a depth two times its diameter. It is suitable for the 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.

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