100R Series

Tool 100Ri188A

Small diameter roughing cuts present a challenge. The tool needs to survive aggressive parameters while evacuating chips from a tight space. The 100Ri188A addresses this with chipbreaker geometry along the cutting edge that fragments chips before they can pack into the 0.1875" diameter flutes.

The TiAlSiN coating adds thermal barrier protection where it matters most.
Small tools generate heat faster due to reduced mass, and this coating helps the edge maintain hardness during interrupted cuts in steel, iron, titanium, and nickel alloys.
The 0.004" chamfer strengthens the cutting edge against microchipping while maintaining the aggressive cutting action.
Four flutes provide smooth cutting in harder materials while the chipbreaker geometry ensures evacuation stays ahead of chip welding.
The surface finish won't be ready for final dimensions.
That comes later with a finishing tool.