Enhanced bond life, cutting performance and tool life are achieved.

This considerably lengthens the useful life of the form tool (6).

The cleaning implement reduces the loss rate of the active agent and extends the life of the cleaning implement.

Additionally, the cross-sectional areas of the respective parts increase and strength increases, variation in tool life is limited, and excellent tool life can be stably obtained.

The resultant tool has a longer life and may be used without a release agent.

The process yields a long tool life together with high processing quality and precision.

The cutting tool is provided with a grind stone portion which is formed by sintering and brazing while reducing further unnecessary processes, and which improves the lifespan of the cutting tool.

The removal of the surface layer containing the weakened material greatly enhances and lengthens the effective working life of the tool.

Such actions help to significantly increase the tool life.

The structure improves the useful time of the diamond tool, and increases the bareness height of the diamond mill grain(2).

The purity of the steel is critical for long tool life.

In that situation, tool life management is relatively simple.

Also, variations in tool lifespan can be suppressed because lip height and waggle can be suppressed.

This will improve the tool life and greatly reduce the risk of tool breakage.

When the tool surface is embossed on the workpiece, tribologically advantageous lubricant pockets are formed.