4-Flute · TiSiN · R2mm · HRC55 · Standard Reach

8mm 4-Flute R2mm TiSiN Solid Carbide Corner Radius End Millfor HRC55 Steel & Stainless

Name: 8mm 4-Flute R2mm TiSiN Corner Radius End Mill for HRC55
Brand: Solid Carbide Direct
SKU: SCD-CREM-TISIN-4F-D8-R2-L35
Price: 56.04 USD
Availability: InStock

TiSiN-coated 4-flute corner radius end mills combine the rigidity of a square end mill with corner geometry that reduces stress concentration and micro-chipping on hardened surfaces up to HRC55. The corner radius distributes cutting load across a wider arc at entry, dramatically extending tool life versus sharp-corner tools in steel and stainless steel shoulder milling and semi-finish passes. TiSiN hardness > 3,500 HV resists abrasion at continuous contact conditions.

R2mmD1 8mmL2 35mmD2 8mmOAL 100mm4 FlutesTiSiNHRC55Standard ReachMOQ 1 pc

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Cena referencyjna

211,85 zł

Cena ref. fabryki (PLN)

wg kosztu pręta na 2026-03-31. Wycena końcowa może się różnić.

8mm 4F R2mm TiSiN

L2 35mm · D2 8mm · OAL 100mm

Standard Reach · HRC55

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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)	8 mm
Flute Length (L2)	35 mm
Shank Diameter (D2 h6)	8 mm
Overall Length (L1)	100 mm
Number of Flutes	4
End Geometry	Corner Radius (Bull Nose)
Coating	TiSiN Titanium Silicon Nitride
Max Material Hardness	HRC55
Reach Category	Standard (L1/D1 = 12.5×)
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

TiSiN · 4 Flute · HRC55 · R2mm

Corner R

2mm

D1 h7

8mm

35mm

D2 h6

8mm

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 HRC55 steel, reduce feed rate 10–15% vs R1mm to maintain consistent chip load across the radius. Trochoidal milling strategies work well for R2mm pocketing.

ø8mm Applications

8mm TiSiN — Where This Tool Fits

▸Automotive component shoulder milling
▸Pump body and valve pocket features
▸Gearbox cover profiling
▸Large mould runner channel machining

Machining Tip: ø8mm is the production sweet spot for corner radius end mills. In HRC55 steel, radial engagement can be 30–50% of D for profiling, with DOC up to 1×D for semi-finish passes. The corner radius reduces chatter significantly at this diameter.

Coating Performance