80° Carbide Insert

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Image shown is a representation, and could be different from the actual product, for example uncoated products will not have the gold colored coating and will be silver in color. See the chart below for the difference between coated and uncoated inserts.

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Product Description

About the Replacement 80° Carbide Insert

Though not inexpensive, it is a pretty good deal when you consider you are getting four cutting tools in one and are saving a lot of time in tool sharpening.

Carbide cutters give good finishes on hard-to-machine materials such as cold-rolled steel. They will also work on aluminum, brass, or leaded steels, lasting practically forever. However, the best finishes on those materials are still achieved with a good, sharp, high-speed steel tool.

The Difference between Coated and Uncoated Inserts

Insert Color Insert Coating Insert Style Insert Size Code General Purpose
Gold Tin coated CPMT 21.51-C5C6 Good for steel, stainless steel, and bronze.
Silver Uncoated CDPMT 21.51-MP2 Good for brass, aluminum, and plastic. Has a better chip breaker and a sharper cutting edge.
80° Carbide Insert Tool Holders

This is a replacement carbide insert for the following tool holders:

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The improper use of machine tools and their accessories can result in serious injury. Before using this tool, thoroughly read the instructions and make sure you understand its proper and safe use.

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Always wear safety glasses when operating machine tools.

Download PDF Carbide Tip Tools Instructions

Instructions PDF Download

INSCRIBED CIRCLE 0.250″ (6.35 MM)
CUTTING EDGE LENGTH 0.254″ (6.45 MM)
INSERT THICKNESS 0.094″ (2.38 MM)
CLEARANCE ANGLE MAJOR 11°
INCLUDED ANGLE 80°
ISO INSERT DESIGNATION CPMT 21.51
CORNER RADIUS 0.016″ (0.4 MM)
MINIMUM FEED PER REVOLUTION 0.002″ (0.05 MM)
MAXIMUM FEED PER REVOLUTION 0.006″ (0.16 MM)
DEPTH OF CUT MINIMUM 0.004″ (0.1 MM)
MAX DEPTH OF CUT 0.059″ (1.5 MM)