Japan 
United States 
Mexico 
Brazil 
EU 
United Kingdom 
Germany 
Spain 
France 
Italy 
Poland 
Turkey 
Czechia 
China 
Asia Pacific 
Vietnam 
Indonesia 
India 
For steels
For stainless steels
For cast iron
For non-ferrous metal
For difficult to cut material
For hardened material
Drill Diameter Selection
When Chamfering
With respect to guide hole diameter D, select the drill diameter (cutting diameter) DC to be within the range of D < DC < 2D.
When Centering
The tool cannot be used for processing if the centering diameter has the same guide hole diameter as drill diameter DC. Refer to the usable length LU (page M172) as a guideline.
In the region of roughly DC/4, which is the region of the two-step point angles, the central area will not have a 90°bottom hole angle.
OPERATIONAL GUIDANCE
For finish cutting
For medium cutting
For rough cutting
