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TiAlN vs AlTiN vs TiN: which coating should I choose for carbide drills?

For steel and stainless drilling, TiAlN or AlTiN is usually a better starting point than TiN when heat is high. TiN is still useful for general work and lower cutting temperature jobs.

TiAlN vs AlTiN vs TiN: which coating should I choose for carbide drills?
Quick Answer

For steel and stainless drilling, TiAlN or AlTiN is usually a better starting point than TiN when heat is high. TiN is still useful for general work and lower cutting temperature jobs.

What is the practical starting point?

For most RFQs, the product code is only the first step. The same insert or end mill family can perform differently depending on material, holder, cutting load, coating and coolant. A good quotation checks the application before selecting a grade or geometry.

What details should I send?

InformationWhy it matters
Tool code / modelConfirms geometry, size and replacement direction.
Workpiece materialControls grade, coating and edge recommendation.
Operation and parametersRoughing, finishing, cutting speed and feed change the recommendation.
Current problemChipping, wear, built-up edge and poor finish need different solutions.

Typical machining example

A machine shop sends an ISO insert code for steel turning, but the problem is edge chipping during interrupted cuts. Before quoting, we ask for the holder model, cutting speed, feed, depth of cut, coolant and whether the previous insert failed suddenly or wore gradually. That information usually decides whether we quote a tougher substrate, a stronger chipbreaker or a different coating.

Need a quote?

Send your tool code, material, quantity and current cutting problem. We will check the closest product direction and reply with supply options.

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