Tooling & Workholding

Milling Tools

Milling is the work of producing a flat or precision-contoured surface on a machined workpiece by using a rotating tool, and generally by taking multiple parallel passes with that tool. The work can be done on a machining center or milling machine, and can also be done on a lathe, turning center or turn-mill machine that happens to have rotary tool (or “live tool”) capabilities. The tools for milling include both solid tools and inserted tools—the latter consisting of a tool body that uses replaceable cutting inserts. Carbide is the most likely material for milling tools, though high speed steel is another choice, as are ceramic, cermet and diamond tools in certain more demanding milling applications. A common milling tool variety is the “end mill,” which generally describes a relatively narrow cylindrical tool that can mill on both its tip and its side, and can reach into various constrained features and spaces. The end mill can be flat-bottomed for flat surfaces, or ball-nosed for milling up, down and along the contours of complex milled shapes such as die and mold surfaces. Another common milling tool variety is the “face mill,” a generally larger-diameter tool designed for efficiently milling a wide, flat surface in an economical number of passes.

» Titanium and HRSA Machining

Machine Tool Database

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Featured Zone Content

Video: Hard Pocket Milling


Relieved end mills and pre-machining of corners are two important considerations for accurate pocket machining in hard steel.



Video: Accelerated Blisk Milling

By: Peter Zelinski
CAM and cutting tool companies develop a process for machining a titanium bladed disk in less than half the conventionally expected cycle time.

Supermill XVP and XVPS end mills

Carbide End Mills for Titanium, Steel, Stainless Alloys

By: Jedd Cole
Supermill offers its XPV and XPVS series of carbide end mills for roughing or finishing difficult materials, featuring a four-flute, variable-pitch and helix design.

Evacuation Plan

By: Russ Willcutt
Milling deep grooves generates tons of chips that are sometimes hard to clear. This internal coolant device provides an innovative solution to this challenge.

Cutting Tools for Aluminum Include Polished Fluting Option

By: Jedd Cole
SGS Tool Co. has expanded its Series 43 cutting tools for aluminum.

Video: HEM Versus Conventional Machining

By: Stephanie Hendrixson
A short video illustrates the differences between conventional machining with multiple shallow passes versus high-efficiency machining with a tool designed for deeper cuts.


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