Our high-precision micro end mill is engineered for hardened steel up to HRC60. Designed with 2 flutes and ultra-fine carbide, this micro carbide end mill offers superior chip evacuation and rigidity. Ideal for precision mold making, Durable Mills supplies micro end mills for wholesale CNC machining.
Engineered for ultra-precision CNC micro-machining, the Durable Mills HRC60 series micro end mill delivers exceptional dimensional accuracy and long-lasting tool life. Manufactured from high-grade sub-micron tungsten carbide substrate featuring a 0.4 μm grain size, 12% cobalt content, and an HRA 92.5–93 hardness, this miniature tooling solution maintains exceptional core strength while resisting premature edge chipping.
Equipped with an advanced AlTiN coating and an optimized two-flute geometry, this 2 flute micro end mill ensures expansive chip pocket clearance and rapid swarf evacuation during flat grooving, facing, and side milling operations. For custom technical specifications or wholesale bulk orders, please contact our technical sales team directly or browse our catalog at Durable Mills.
| Model Type | Cutting Dia. (D) mm | Flute Length (Lc) mm | Shank Dia. (d) mm | Overall Length (L) mm | Flutes |
|---|---|---|---|---|---|
| DM-0.2*0.4*4*50 | 0.2 | 0.4 | 4.0 | 50 | 2 |
| DM-0.3*0.6*4*50 | 0.3 | 0.6 | 4.0 | 50 | 2 |
| DM-0.4*0.8*4*50 | 0.4 | 0.8 | 4.0 | 50 | 2 |
| DM-0.5*1*4*50 | 0.5 | 1.0 | 4.0 | 50 | 2 |
| DM-0.6*1.2*4*50 | 0.6 | 1.2 | 4.0 | 50 | 2 |
| DM-0.7*1.4*4*50 | 0.7 | 1.4 | 4.0 | 50 | 2 |
| DM-0.8*1.6*4*50 | 0.8 | 1.6 | 4.0 | 50 | 2 |
| DM-0.9*1.8*4*50 | 0.9 | 1.8 | 4.0 | 50 | 2 |
| Material Group | Hardness / Type | Depth of Cut (ap) | Width of Cut (ae) | Cutting Speed Vc (m/min) | Feed Per Tooth fz (mm/z) |
|---|---|---|---|---|---|
| P (Steels) | Carbon / Alloy Steel (<35 HRC) | ap ≤ 1.5D | ae ≤ 0.15D | 170 | 0.008D |
| P (Steels) | Alloy Steel (35–48 HRC) | ap ≤ 1.0D | ae ≤ 0.10D | 140 | 0.006D |
| M (Stainless) | Stainless Steels (Austenitic/Martensitic) | ap ≤ 0.8D | ae ≤ 0.10D | 110 | 0.005D |
| K (Cast Iron) | Gray & Ductile Cast Iron (<32 HRC) | ap ≤ 1.5D | ae ≤ 0.15D | 150 | 0.0065D |
| H (Hardened) | Hardened Die/Mold Steel (45–65 HRC) | ap ≤ 0.5D | ae ≤ 0.05D | 90 | 0.004D |
*Note: Please adjust feed rate and spindle speed according to machine rigidity, tool overhang, and actual workpiece hardness.
A 2-flute micro end mill provides significantly wider flute valleys, facilitating prompt chip ejection and preventing tool breakage caused by swarf recutting—vital when milling micro slots below 1.0mm in diameter.
To prevent micro-tool deflection or sudden fracture, we advise holding total indicator reading (TIR) runout under 0.003mm using high-precision shrink-fit or hydraulic tool holders on high-speed CNC spindles.
Yes. Durable Mills maintains substantial regular stock for standard sizes (0.2mm to 0.9mm) and offers flexible OEM packaging, custom shank lengths, and laser marking for international distributors.
You can reach our export department by emailing info@durablemills.com or submitting your RFQ directly via our inquiry page.
