Product Overview
The CGS Tool 140-6250-ALTiN is a 5/8" diameter 4-flute solid carbide square end mill built for shops that need to move real volume without babysitting the tool. It's part of the 140 Series, and at this size it's doing the heavier lifting — slotting, profiling, plunging, and side wall work where you need the material gone fast and the wall left clean.
The 30° helix is what keeps a tool this size from fighting you; it clears chips steadily instead of letting them recut or pack into the flutes under load. CGS put an ALTiN coating on this one, which matters more here than it would on a smaller finishing tool — heat builds up fast when you're pulling this much material, and the coating buys the edge extra life before it starts to round over. Runs fine across mild steel, stainless, cast iron, titanium, non-ferrous stock, plastics, and composites without needing a different tool for each material.
Tool Specifications:
- Diameter: 5/8"
- Shank: 5/8"
- Length of Cut (LOC): 1-1/4"
- Overall Length (OAL): 3-1/2"
- Flutes: 4 Flute
- End Style: Square End
- Material: Solid Carbide
- Coating: ALTiN
- Radius: No
- Series: 140 Series
- Part No: 140-6250-ALTiN
Key Performance Features:
- 4-flute square end handles both roughing and finishing passes
- ALTiN coating buys extra edge life when heat starts building up
- 5/8" diameter is built for pulling heavier stock removal
- 30° helix keeps the cut clearing instead of packing up
- Holds steady through slotting, profiling, plunge, and side wall work
- Cuts cleanly across steel, stainless, cast iron, titanium, non-ferrous metals, plastics, and composites
