Product Overview
Some jobs don't need a bigger tool, they need a smaller one that still holds tolerance. The 230-0312 is a 1/32" diameter 3-flute square end mill made for exactly that kind of work, where the feature is tiny but the accuracy requirement isn't.
The 45° helix is steeper than what you'd find on the standard 140 or 120 Series tools, and that extra angle helps at this scale, where even a slight amount of deflection can throw off a miniature slot or pocket. It's uncoated, single-end, and built to stay controlled rather than aggressive. Mild steel, stainless, cast iron, titanium, non-ferrous metals, plastics, and composites are all fair game as long as the operator respects the limits that come with a tool this small.
Tool Specifications:
- Diameter: 1/32"
- Shank: 1/8"
- Length of Cut (LOC): 3/64"
- Overall Length (OAL): 1-1/2"
- Flutes: 3 Flute
- End Style: Square End
- Material: Solid Carbide
- Coating: Uncoated
- Radius: No
- Series: 230 Series
- Part No: 230-0312
Key Performance Features:
- 3-flute design built specifically for miniature milling work
- 45° helix supports smoother chip flow at small diameters
- Suited to tiny slots, fine profiles, and delicate plunge cuts
- Single-end solid carbide for consistent cutting geometry
- Works best where precision matters more than removal rate
- Cuts mild steel, stainless, cast iron, titanium, non-ferrous, plastics, and composites
