930 Series

Tool 931i1212C

Small dovetail slots demand precision without chatter. The 931i1212C handles 0.1875" cutting diameter operations in steel, aluminum, and most machinable metals where traditional tooling falls short.

The 30-degree included angle with R0.005" corner radius creates clean undercuts while reducing stress concentration at the dovetail root.
This geometry combination matters for workholding applications where fatigue failure starts at sharp internal corners.
The 0.1181" neck diameter provides clearance for deeper cuts without workpiece interference.
TiB₂ coating extends tool life in interrupted cuts and varying material hardness conditions.
The coating's lower coefficient of friction reduces heat buildup during the alternating cutting and non-cutting phases typical in dovetail milling operations.
Two flutes balance chip evacuation with rigidity at this diameter range.