Designed for high-efficiency machining, the HRC55 carbide roughing end mill delivers heavy-duty metal removal on steels and cast iron.
This solid carbide roughing end mill produces broken chips to enhance operational safety, making our HRC55 roughing mill ideal for demanding CNC milling.
Manufactured by Durable Mills, our industrial-grade HRC55 carbide roughing end mill series is engineered specifically for heavy cutting, slotting, and bulk material removal across medium to high-hardness workpiece materials. Constructed with a specialized micro-grain tungsten carbide substrate containing 10% cobalt (HRA 91.2–91.7), this economical universal roughing cutter offers superior rigidity and wear resistance for continuous CNC milling environments.
*Please adjust actual feed and speed according to machine rigidity, workpiece clamping, and coolant conditions.
| Workpiece Material | Axial Depth (ap) | Radial Width (ae) | Cutting Speed (Vc) | Feed Per Tooth (fz) |
|---|---|---|---|---|
| Carbon Steel / Alloy Steel (<35 HRC) | ap ≤ 1.5D | ae ≤ 0.3D | 130 m/min | 0.008D mm/z |
| Alloy Steel (35–48 HRC) | ap ≤ 1.0D | ae ≤ 0.25D | 90–110 m/min | 0.006D mm/z |
| Stainless Steel | ap ≤ 1.0D | ae ≤ 0.2D | 70–90 m/min | 0.005D mm/z |
| Gray Cast Iron / Ductile Iron (<32 HRC) | ap ≤ 1.5D | ae ≤ 0.3D | 130 m/min | 0.008D mm/z |
| Hardened Steel (45–55 HRC) | ap ≤ 0.8D | ae ≤ 0.15D | 50–80 m/min | 0.004D mm/z |
| Model Designation | Cutting Dia. (D) mm | Flute Length (Lc) mm | Shank Dia. (d) mm | Total Length (L) mm | Flutes |
|---|---|---|---|---|---|
| DM-3*6*3*50*4T | 3 | 6 | 3 | 50 | 4 |
| DM-3*12*3*75*4T | 3 | 12 | 3 | 75 | 4 |
| DM-3*15*3*100*4T | 3 | 15 | 3 | 100 | 4 |
| DM-4*10*4*50*4T | 4 | 10 | 4 | 50 | 4 |
| DM-4*16*4*75*4T | 4 | 16 | 4 | 75 | 4 |
| DM-4*20*4*100*4T | 4 | 20 | 4 | 100 | 4 |
| DM-5*13*5*50*4T | 5 | 13 | 5 | 50 | 4 |
| DM-5*20*5*75*4T | 5 | 20 | 5 | 75 | 4 |
| DM-5*25*5*100*4T | 5 | 25 | 5 | 100 | 4 |
| DM-5*13*6*50*4T | 5 | 13 | 6 | 50 | 4 |
| DM-6*15*6*50*4T | 6 | 15 | 6 | 50 | 4 |
| DM-6*25*6*75*4T | 6 | 25 | 6 | 75 | 4 |
| DM-6*30*6*100*4T | 6 | 30 | 6 | 100 | 4 |
| DM-8*20*8*60*4T | 8 | 20 | 8 | 60 | 4 |
| DM-8*28*8*75*4T | 8 | 28 | 8 | 75 | 4 |
| DM-8*35*8*100*4T | 8 | 35 | 8 | 100 | 4 |
| DM-10*25*10*75*4T | 10 | 25 | 10 | 75 | 4 |
| DM-10*40*10*100*4T | 10 | 40 | 10 | 100 | 4 |
| DM-12*30*12*75*4T | 12 | 30 | 12 | 75 | 4 |
| DM-12*45*12*100*4T | 12 | 45 | 12 | 100 | 4 |
| DM-14*45*14*100*4T | 14 | 45 | 14 | 100 | 4 |
| DM-14*60*14*150*4T | 14 | 60 | 14 | 150 | 4 |
| DM-16*45*16*100*4T | 16 | 45 | 16 | 100 | 4 |
| DM-16*60*16*150*4T | 16 | 60 | 16 | 150 | 4 |
| DM-18*45*18*100*4T | 18 | 45 | 18 | 100 | 4 |
| DM-18*70*18*150*4T | 18 | 70 | 18 | 150 | 4 |
| DM-20*45*20*100*4T | 20 | 45 | 20 | 100 | 4 |
| DM-20*70*20*150*4T | 20 | 70 | 20 | 150 | 4 |
Q1: What materials are best suited for this HRC55 roughing end mill?
A: This tool is specifically engineered for carbon steels, alloy steels, stainless steel, cast iron, and hardened tool steels up to HRC 55. The sinusoidal edge geometry breaks chips rapidly, minimizing chatter during heavy stock removal.
Q2: What is the main benefit of a roughing end mill compared to a standard flat end mill?
A: Roughing end mills feature serrated cutting profiles that produce small, manageable chips rather than continuous ribbons. This reduces cutting resistance, dissipates heat faster, and permits significantly larger depths of cut (ap) and feed rates.
Q3: Can Durable Mills provide custom lengths, coatings, or private label OEM services?
A: Yes. We support international B2B distributors and tool importers with custom tool dimensions, optimized PVD coatings (such as AlTiN/TiSiN), laser marking, and specialized bulk packaging.
Q4: How do I request a bulk quote or place a trial order?
A: You can reach our sales team directly via our Contact Us Page or email us at info@durablemills.com with your required specifications and quantities.
