Product Overview
The CGS Tool 840-2500-ALTiN is a 1/4" diameter 4-flute solid carbide square end mill built for jobs where you need more reach than a standard-length cutter can give you. It's part of the 840 Series, CGS Tool's long-length square end line, made for shops that keep running into features too deep for a standard tool without wanting to switch to a specialty extended-reach cutter every time.
The 4-flute square end geometry keeps things stable, the 30° helix keeps chips moving instead of packing, and the 4" overall length means you're not stretching a shorter tool past its comfort zone to hit depth. The ALTiN coating adds a layer of heat protection so the extra length doesn't come at the cost of edge life. It's built from solid carbide and works across mild steels, stainless, cast iron, titanium, non-ferrous materials, plastics, and composites.
Tool Specifications:
- Diameter: 1/4"
- Shank: 1/4"
- Length of Cut (LOC): 1-1/2"
- Overall Length (OAL): 4"
- Flutes: 4 - Square End
- Material: Solid Carbide
- Coating: ALTiN
- Helix: 30°
- Design: Single End
- Series: CGS 840 Series
- Part No: 840-2500-ALTiN
Key Performance Features:
- 4-flute square end design for stable, clean-cutting milling
- Extended 4" overall length reaches deeper features
- ALTiN coating helps manage heat and extend tool life
- 30° helix keeps chip evacuation under control
- Solid carbide body holds rigidity despite the added reach
- Runs in mild steels, stainless, cast iron, titanium, non-ferrous materials, plastics, and composites
- Suited to slotting, profiling, pocketing, plunge milling, and side-wall work
