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Carbideinsertidentification chart

It's important to remember that the ISO designation system is not a system that standardizes the quality of the insert. Neither the carbide grade nor the cutting geometry is standardized in this designation system.

I’m trying to see what the consensus here is. Most typical drill bits are 118 and 135 deg. My understanding is that the tougher steel you mess with the 135 deg jobbers are more suited but I’m sure you could do the same with 118. Idk someone enlighten me please

CNMGInsertspecification

Insert nomenclaturechart

THE ISO designation system for indexable insertsThe ISO designation system for indexable inserts (ISO 1832) is a standardized system to name an indexable insert.The system is designed so that each important feature and dimension of the insert is shown using a code system. This becomes the name of the insert.  This system has several advantages:Unique naming of an indexable insert (supplier independent)All important features and dimensions are clearly stated in the nameSome code positions relate to the insert carrier in which the insert can be mounted It's important to remember that the ISO designation system is not a system that standardizes the quality of the insert. Neither the carbide grade nor the cutting geometry is standardized in this designation system.    This is an example for milling inserts. For other applications, you can refer to the relevant Machining Navigator.  Do you want to know more?Contact Us Inline Content - SurveyCurrent code - 5fce8e61489f3034e74adc64

The system is designed so that each important feature and dimension of the insert is shown using a code system. This becomes the name of the insert.