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Carbide inserts are widely used in machining operations, as they provide increased cutting performance as compared to standard cutting tools. The geometry of the insert, however, plays a major role in the cutting performance. Various geometries such as positive rake, negative rake, and neutral rake can be used for different materials and machining operations.

Positive rake inserts have a greater cutting edge angle and high cutting force, which makes them suitable for machining harder materials and heavier cuts. Negative rake inserts, on the other hand, have a lower cutting edge angle and low cutting force, making them suitable for softer materials and lighter cuts. Neutral rake inserts have a cutting edge angle that is between positive and TNGG Insert negative rake inserts, making them suitable for general-purpose machining operations.

The geometry of the insert also affects the cutting speed, surface finish, and tool life. Positive rake inserts provide higher cutting speeds and better surface finish, but have a shorter tool life. Negative rake inserts provide lower cutting speeds and poorer surface finish, but have a longer tool life. Neutral rake inserts provide a balanced performance between the two, with a good cutting speed, surface finish, and tool life.

In conclusion, carbide insert geometries play a major role in cutting performance. Positive rake inserts are suitable for harder materials and heavier cuts, while negative rake inserts are suitable for softer materials and lighter cuts. Neutral rake inserts provide a balanced performance for general-purpose machining operations. The geometry BTA deep hole drilling inserts of the insert also affects the cutting speed, surface finish, and tool life.