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 […]
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).
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.
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 […]