American Broach Tools are not the lowest cost per pound, they are the lowest cost per piece broached!

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Knowledge Base

Can a broach tool be resharpened?

Yes, most broach tools can be resharpened.
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Can broach tools cut hardened parts?

Uncoated broach tools made of a premium high speed steel grade can usually cut parts that have a hardness less than or equal to 32 HRC. It is possible to cut parts that are 38 to 42 HRC in hardness with a combination of premium high speed steel and advanced PVD coatings. Parts that have…
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How is broach wear measured?

Broach cutting tool wear is measured best with a digital microscope with optical measurement capabilities. The microscope can be used to quantify the amount of wear on the tops, corners, and faces of the cutting teeth.
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How long can a broach tool be?

Broach tools vary in length depending on the cutting application. In most cases, broach tools can have an over-all length that is up to 100 times the smallest cutting tooth diameter.
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How many parts can I cut with a broach tool before resharpening?

The number of parts that can be cut by a broach tool before it needs resharpening depends on many factors. However, 2000 linear inches of cut in soft steel parts should be attainable with a broach tool made from PM-M4 high speed steel, prior to needing resharpening. Tool life estimates in other applications can be…
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How many times can a broach tool be resharpened

A broach tool can often be resharpened more than once. Most broach tools can be sharpened until the thickness of the cutting teeth reaches 0.040 inches (or 1 millimeter).
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How should broach tools be stored?

Broach cutting tools should be stored in vertical or horizontal racks, keeping each tool separate from one another. A soft padding (such as wood, plastic or rubber) should be used to cover all surfaces touching the broach tools.
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How should broaches be packaged for shipment?

Broaches should be shipped in wood, metal, or stiff corrugated cardboard packaging with wooden or thick plastic ends. All surfaces that contact the broach should be covered in a soft and durable material, such as wood, plastic, rubber, or dense cardboard product. The broach tools should be packed tightly to ensure no movement of the…
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What are broach tools made of?

Broach cutting tools are usually made of an molybdenum or tungsten series tool steel: M2, PM-M4, PM-T15, etc…
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What is a broach cutting tool?

A broach cutting tool is a slender cutting tool made from tool steel that produces a pre-determined shape on the inside or outside of a part. The broach tool has cutting teeth along its length that are tapered so the last cutting teeth are larger in diameter or taller in height than the first cutting…
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What is the best coolant for broaching?

A water soluble cutting oil mixed at a manufacturer’s recommended concentration (often 10-12%) is the best coolant for a broaching application. In some applications, a straight cutting oil provides a better surface finish, but has less heat capacity. Broaching applications usually require a cutting fluid designed for heavy duty machining applications. Often, a cutting fluid…
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What kind of machine is required to use a broach cutting tool?

Broach cutting tools are usually used in broaching machines, designed specifically for the broaching process. Most broaching machines use pull type broaches or mounted surface (external) broach tools. Broaching machines come in vertical and horizontal orientations. Push type broaching tools are used in a hydraulic press, where a smooth continuous stroke is required.
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What speeds and feeds should I use for broaching?

Broach tools often perform best when ran between 10 and 30 feet per minute (sfm) cutting speed. This translates to 3 to 9 meters per minute, in the metric system. The cutting feed (cut per tooth) of a broach tool is fixed, established when the broach is manufactured.
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When should a broach cutting tool be resharpened?

Most broach cutting tools require sharpening after 0.008 to 0.010 inches of wear is generated on the tops (outside diameter) of the cutting teeth. This is a good starting point for tool life management and often leads to maximum broach tool utilization.
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