Milling

Milling Tools and Tooling

Milling is where most engineering workshops spend their cutting time — slotting, profiling, facing, and finishing parts that started life as raw stock. The tooling decisions matter: the wrong cutter wears out, breaks, or leaves a finish that needs reworking. AIMS Industrial stocks a deep range of milling tooling for toolmakers, machinists, and production workshops, plus the holders and accessories that turn a machine into a productive cell.

The categories we cover

• End mills — square end, ball nose, corner radius, in HSS, HSS-E, and solid carbide
• Slot drills — for plunge cutting and slotting in steel, alloy, and aluminium
• Face mills and shell mills — for high-rate stock removal on flat surfaces
• Indexable milling cutters — body and insert systems for production work
• Milling inserts — APKT, APMT, SEKT, and other common geometries
• Counterbores and corner end mills — chamfer, corner radius, and counterbore work
• Milling tool holders — collet chucks, end mill holders, shell mill arbors

HSS, HSS-E, or carbide?

HSS end mills are the workhorse — economical, forgiving of speed and feed errors, and easy to resharpen. HSS-E (cobalt) handles tougher steels and stainless without the brittleness of carbide. Solid carbide cuts faster, holds an edge longer, and produces better finishes — but it doesn't tolerate vibration, run-out, or interrupted cuts the way HSS does.

Coatings that matter

TiN extends life in general steel, TiCN handles harder steels, TiAlN is for high-temperature work in tough alloys and stainless, and uncoated solid carbide remains a good choice for aluminium. Choose by material first, then by cutting speed.

Brands stocked at AIMS

Sutton Tools, Bordo, and Champion are the core brands for HSS and solid carbide milling cutters. SECO and other premium brands are available where the application demands them. Tool holders and arbors are stocked in the common shank styles.

Helix and flute count

End mill flute count drives chip clearance and finish. Two-flute end mills have the largest gullet — the right choice for slot milling and aluminium where chip evacuation is the priority. Three-flute is the all-rounder for general profiling. Four-flute gives a better finish in steel, but the smaller gullets can clog in soft materials. For very high feed rates, 5- to 8-flute roughing or finishing tools have their place. Match flute count to operation and material — not all jobs want the same end mill.

Speeds and feeds

Surface speed (Vc), feed per tooth (fz), and depth of cut (ap, ae) define a milling operation. Manufacturer data sheets give starting points by tool diameter, material, and operation. For a workshop running varied work, a speed-and-feed wheel or app is worth using — guessing leads to broken cutters and burned finishes.

Need help speccing a milling tool?

contact our team with the material, machine, operation, and finish requirements — we'll get you the right cutter first time. AIMS Industrial has supported Australian workshops with quality cutting tools since 1988.