
Secure coating-to-substrate interface
The substrate chemistry and microstructure promote dense diamond nucleation, reducing the risk of premature coating separation in abrasive graphite cutting.
2DEM · Standard order code with online price
2F Diamond Square End · Order code: 2DEM 030 250 S04
D3*12FL*25NL*80 OAL*4SH*2F diamond-coated square end graphite end mill in the 2DEM series. Online reference price USD 14.20/pc as of 2026-Sep-14; order code 2DEM 030 250 S04.
Price available online
$14.20
USD / pc · FOB China
Price as of 2026-Sep-14
Published online for purchasing budgets and size comparison
Standard terms are 100% T/T in advance with a reference lead time of 10–15 working days. Final price and delivery are confirmed against quantity, tolerance, and order requirements.
D3*12FL*25NL*80 OAL*4SH*2F engineering specification
Order code: 2DEM 030 250 S04
All linear dimensions in mm
| Parameter | Symbol | Value | Purchasing / inspection note |
|---|---|---|---|
| Cutter diameter | D | 3 mm | Nominal cutting diameter; default tolerance -0.020 / 0 mm |
| Ball / corner radius | R | — | Not applicable to this specification |
| Flute length | L1 | 12 mm | Cutting edge length |
| Neck diameter | dN | — | Neck diameter not specified for this item |
| Neck length | L2 | 25 mm | Nominal neck length |
| Shank diameter | d | 4 mm | Nominal shank diameter |
| Overall length | L | 80 mm | Overall length (OAL) |
| Flute count | Z | 2 | Number of flutes |
Diamond coating and edge retention
D3*12FL*25NL*80 OAL*4SH*2F combines a fine-grain carbide substrate with a graphite-specific diamond coating. On this square end tool, lower edge wear helps retain the specified dimensions and cutting profile during production.

The substrate chemistry and microstructure promote dense diamond nucleation, reducing the risk of premature coating separation in abrasive graphite cutting.

In the shown carbon-resin test, diamond coating records about 0.006 mm edge retreat versus about 0.023 mm for TiAlN. Lower wear supports more consistent machined dimensions.

AK06 uses high-quality fine WC powder with controlled grain size and morphology, providing a diamond-compatible substrate for D3*12FL*25NL*80 OAL*4SH*2F.
ZOLLER dimensional inspection

Every tool is checked for critical dimensions and cutting geometry using an optical measurement system. A dimensional report for order code 2DEM 030 250 S04 is available for incoming inspection and traceability.
Starting parameters for graphite
Use these values as the initial setup for diamond-coated solid carbide end milling in graphite. Validate by test cut and optimise for machine rigidity, tool overhang, runout, and dust extraction.
Spindle speed
16,500
rev/min
Feed rate
800
mm/min
Axial depth ap
4.5
mm
Radial width ae
0.3
mm
Nearby 2DEM standard sizes
Order code: 2DEM 030 120 S04
Ø3 · 2F · OAL 80 mm
Order code: 2DEM 030 200 S04
Ø3 · 2F · OAL 80 mm
Order code: 2DEM 030 300 S04
Ø3 · 2F · OAL 80 mm
Order code: 2DEM 030 400 S04
Ø3 · 2F · OAL 80 mm
Order code: 2DEM 030 500 S04
Ø3 · 2F · OAL 80 mm
Order code: 2DEM 030 090 S06
Ø3 · 2F · OAL 50 mm
Send the order quantity, work material, machine setup, and target delivery. We will confirm order pricing, production scheduling, and dimensional-report requirements using the 2026-Sep-14 online reference price as the starting point; order code 2DEM 030 250 S04.
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