Product Overview
The CGS Tool 140-4688 is a 15/32" diameter 4-flute solid carbide square end mill built for shops that need a dependable, no-surprises cutter for everyday milling work. It's part of the 140 Series, CGS Tool's general-purpose square end line, and it's the of tool you reach for when the job calls for clean walls and predictable results rather than anything exotic.
What makes the 140-4688 work as well as it does is the combination of a 4-flute layout with a 30° helix. The extra flute count adds stability in the cut, so you're not fighting deflection on deeper passes, while the 30° helix keeps chip evacuation smooth instead of packing up in the flutes. Left uncoated, this one's built to flex across whatever material shows up on the schedule — mild steel, stainless, cast iron, titanium, non-ferrous stock, plastics, composites — without needing a coating-specific game plan.
Tool Specifications:
- Diameter: 15/32"
- Shank: 1/2"
- Length of Cut (LOC): 1"
- Overall Length (OAL): 3"
- Flutes: 4 - Square End
- Material: Solid Carbide
- Coating: Uncoated
- Helix: 30°
- Design: Single End
- Series: CGS 140 Series
- Part No: 140-4688
Key Performance Features:
- 4-flute square end geometry built for stable, everyday milling
- 30° helix keeps chip evacuation smooth and cutting balanced
- Solid carbide body holds up under repeated production use
- Uncoated finish gives it flexibility across material types
- Handles mild steels, stainless, cast iron, titanium, non-ferrous stock, plastics, and composites
- Suited to slotting, profiling, pocketing, plunge milling, and side-wall work
- A solid mid-size option for both toolroom and production floors
