4-Flute · Uncoated · R2mm · Aluminium · Standard Reach

12mm 4-Flute R2mm Uncoated Solid Carbide Corner Radius End Millfor Aluminium & Non-Ferrous Fillet Milling

Name: 12mm 4-Flute R2mm Uncoated Corner Radius End Mill for Aluminium
Brand: Solid Carbide Direct
SKU: SCD-CREM-UNCOATED-4F-D12-R2-L45
Price: 122.12 USD
Availability: InStock

Uncoated (bright-polished) corner radius end mills are optimised for aluminium alloys, copper, brass, and graphite — any material where coatings cause adhesion. The corner radius produces clean fillet radii in pockets and profiles without a separate deburring step. Polished flute surfaces prevent built-up edge (BUE) that would otherwise ridge the fillet radius in soft metals. 4 flutes maximise feed rate and achieve Ra < 0.8µm in aluminium at high spindle speeds. Radius options from R0.2–R2.5mm cover all standard fillet requirements.

R2mmD1 12mmL2 45mmD2 12mmOAL 100mm4 FlutesUncoatedNon-FerrousStandard ReachMOQ 1 pc

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Richtpreis

107,03 €

Richtpreis Werk (EUR)

Basierend auf Stabmaterial-Stand per 2026-03-31. Endgültiges Angebot kann abweichen.

12mm 4F R2mm Uncoated

L2 45mm · D2 12mm · OAL 100mm

Standard Reach · Aluminium

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✓ Factory direct pricing

✓ MOQ 1 piece, ships 1–5 days

✓ Custom radius in 0.1mm increments

Full Dimensions

Technical Specifications

Corner Radius	2 mm
Cutter Diameter (D1 h7)	12 mm
Flute Length (L2)	45 mm
Shank Diameter (D2 h6)	12 mm
Overall Length (L1)	100 mm
Number of Flutes	4
End Geometry	Corner Radius (Bull Nose)
Coating	Uncoated Bright polished
Max Material Hardness	N/A (non-ferrous optimised)
Reach Category	Standard (L1/D1 = 8.3×)
Helix Angle	30°–35°
Substrate	K10/K20 Ultra-Fine Grain Carbide
Shank Tolerance	h6
MOQ	1 piece
Lead Time (standard)	1–5 business days
Lead Time (custom)	5–15 business days

Uncoated · 4 Flute · Aluminium · R2mm

Corner R

2mm

D1 h7

12mm

45mm

D2 h6

12mm

100mm

Reach

Standard

R2mm Corner Geometry

Heavy-corner fillet for energy, marine, and structural components

▸Produces R2mm fillets without interpolation — direct plunge-to-shoulder possible
▸Widely used in wind turbine nacelle components and frame pockets
▸Reduces stress concentration on R2mm structural fillets vs machined-in ball nose
▸Long-reach variants for deep pocket access (L1 up to 150mm)

Radius Selection Tip: R2mm at this tool diameter means a significant portion of the cutting edge is curved. In aluminium alloy, reduce feed rate 10–15% vs R1mm to maintain consistent chip load across the radius. Trochoidal milling strategies work well for R2mm pocketing.

ø12mm Applications

12mm Uncoated — Where This Tool Fits

▸Large mould and die shoulder milling
▸Structural bracket and frame pocketing
▸Transmission case features
▸Wind turbine blade mould profiling

Machining Tip: ø12mm in aluminium alloy: use 0.5×D DOC for first passes to verify fixturing, then increase to 1×D for production. Corner radius is especially beneficial at this size where vibration-induced corner micro-chipping is common in hardened steel.

Coating Performance

Uncoated on Corner Radius Geometry

▸Mirror-polished corner geometry — zero aluminium adhesion on curved arc
▸Eliminates BUE that would deform fillet radius in soft alloys
▸Clean fillet radii in aluminium — no post-milling deburring required
▸Works in copper, brass, graphite, and CFRP composite materials
▸Use with air blast or light oil mist at 10,000–30,000 RPM

ISO Nuncoated corner radius end mill aluminiumbull nose end mill non-ferrous4 flute radius end mill aluminiumcorner radius carbide end mill copper brass

Same Diameter & Radius, Different Reach