ALUMINA ROUGHING ENDMILLS
alumina roughing endmills
endmills provide several benefits. First, they allow higher metal removal rates. Secondly, they reduce tool wear during continuous machining.
Moreover, these tools improve chip control. Therefore, machine downtime is reduced. As a result, overall machining efficiency improves.
Roughing End Mill (HRC 55) — Summary Chart
Category | Details |
Tool Name | Alumina Roughing End Mill – HRC 55 |
Description | Solid carbide end mill with serrated (corn-cob) cutting edges designed for high material removal in medium-hard steels up to 55 HRC. Provides stable cutting, low vibration, and effective chip control. |
Uses / Applications | • Heavy stock removal on pre-hardened steels (40–55 HRC) • Rough machining of molds, dies, and castings • Slotting, contouring, pocketing on CNC mills • Pre-finishing before fine end milling |
Material Range | Tool steel, alloy steel, die steel (P20, H13), stainless steel, cast iron |
Coating Options | TiAlN / AlCrN / nACo – provides excellent wear resistance, oxidation protection, and high-temperature stability during high-speed roughing |
Typical Output / Performance | • High Metal Removal Rate (MRR) • Feed per tooth: 0.08 – 0.25 mm/tooth • Depth of cut: up to 1×D • Surface finish: Ra 3.2 – 6.3 µm • Tool life: 1.5 – 3× longer than uncoated mills |
Advantages | Fast, efficient roughing on hardened materials Excellent chip control with serrated flutes Stable operation with reduced vibration High heat & wear resistance from coating |
