• Korloy U-Star 3 Flute Double Radius End Mill UDR503
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Korloy U-Star 3 Flute Double Radius End Mill UDR503

Korloy U-Star 3 Flute Double Radius End Mill UDR503

Solid carbide end mill of the U-Star series for mold and die machining of HRC30~50 medium hardness steel and die steel.

Key features

  • Carbide substrate for medium hardness steel cutting
  • AlCrN based multilayer coating for wear and oxidation resistance
  • S-curved gash shape disperses cutting force
  • Helix angle 45°
  • Radius tolerance ±0.02 (Corner R)
  • h5 shank tolerance

Specifications

Series line U-Star End Mill
Flutes 3
Coating AlCrN
Helix angle 45°
ØD tolerance Ø6~Ø20: 0~-0.02mm
Shank tolerance h5
Radius tolerance ±0.02 (Corner R)
Workpiece (excellent) Alloy steel HB225~325, Pre-hardened steel HRC30~50
Workpiece (good) Hardened steel SKD61~HRC55, Cast iron ~FCD500
UDR50306005 R (mm): 0.5 | ØD (mm): 6 | Ød (mm): 6 | R2 (mm): 6 | ℓ (mm): 10 | L (mm): 90
UDR50306010 R (mm): 1 | ØD (mm): 6 | Ød (mm): 6 | R2 (mm): 6 | ℓ (mm): 10 | L (mm): 90
UDR50306020 R (mm): 2 | ØD (mm): 6 | Ød (mm): 6 | R2 (mm): 6 | ℓ (mm): 10 | L (mm): 90
UDR50308005 R (mm): 0.5 | ØD (mm): 8 | Ød (mm): 8 | R2 (mm): 8 | ℓ (mm): 16 | L (mm): 100
UDR50308010 R (mm): 1 | ØD (mm): 8 | Ød (mm): 8 | R2 (mm): 8 | ℓ (mm): 16 | L (mm): 100
UDR50308020 R (mm): 2 | ØD (mm): 8 | Ød (mm): 8 | R2 (mm): 8 | ℓ (mm): 16 | L (mm): 100
UDR50310005 R (mm): 0.5 | ØD (mm): 10 | Ød (mm): 10 | R2 (mm): 10 | ℓ (mm): 20 | L (mm): 100
UDR50310010 R (mm): 1 | ØD (mm): 10 | Ød (mm): 10 | R2 (mm): 10 | ℓ (mm): 20 | L (mm): 100
UDR50310020 R (mm): 2 | ØD (mm): 10 | Ød (mm): 10 | R2 (mm): 10 | ℓ (mm): 20 | L (mm): 100
UDR50312005 R (mm): 0.5 | ØD (mm): 12 | Ød (mm): 12 | R2 (mm): 12 | ℓ (mm): 24 | L (mm): 110
UDR50312010 R (mm): 1 | ØD (mm): 12 | Ød (mm): 12 | R2 (mm): 12 | ℓ (mm): 24 | L (mm): 110
UDR50312020 R (mm): 2 | ØD (mm): 12 | Ød (mm): 12 | R2 (mm): 12 | ℓ (mm): 24 | L (mm): 110
UDR50316005 R (mm): 0.5 | ØD (mm): 16 | Ød (mm): 16 | R2 (mm): 16 | ℓ (mm): 32 | L (mm): 150
UDR50316010 R (mm): 1 | ØD (mm): 16 | Ød (mm): 16 | R2 (mm): 16 | ℓ (mm): 32 | L (mm): 150
UDR50320005 R (mm): 0.5 | ØD (mm): 20 | Ød (mm): 20 | R2 (mm): 20 | ℓ (mm): 40 | L (mm): 150
UDR50320010 R (mm): 1 | ØD (mm): 20 | Ød (mm): 20 | R2 (mm): 20 | ℓ (mm): 40 | L (mm): 150
End MillsKorloy
16 product codes available in this family
Sourced direct from KoreaExport-ready supplyCompetitive pricing
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Korloy U-Star 3 Flute Double Radius End Mill UDR503

Brand Korloy·End Mills

Available part numbers (16)

UDR50306005, UDR50306010, UDR50306020, UDR50308005, UDR50308010, UDR50308020, UDR50310005, UDR50310010, UDR50310020, UDR50312005 + 6 more — see full table ↓

How to order

Send the Korloy part numbers and quantities through our RFQ form or to info@prosourcemro.com. We confirm price, availability and lead time within 1 business day — no account needed.

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Product codes & specifications
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Product codeSpec
UDR50306005R (mm): 0.5 | ØD (mm): 6 | Ød (mm): 6 | R2 (mm): 6 | ℓ (mm): 10 | L (mm): 90
UDR50306010R (mm): 1 | ØD (mm): 6 | Ød (mm): 6 | R2 (mm): 6 | ℓ (mm): 10 | L (mm): 90
UDR50306020R (mm): 2 | ØD (mm): 6 | Ød (mm): 6 | R2 (mm): 6 | ℓ (mm): 10 | L (mm): 90
UDR50308005R (mm): 0.5 | ØD (mm): 8 | Ød (mm): 8 | R2 (mm): 8 | ℓ (mm): 16 | L (mm): 100
UDR50308010R (mm): 1 | ØD (mm): 8 | Ød (mm): 8 | R2 (mm): 8 | ℓ (mm): 16 | L (mm): 100
UDR50308020R (mm): 2 | ØD (mm): 8 | Ød (mm): 8 | R2 (mm): 8 | ℓ (mm): 16 | L (mm): 100
UDR50310005R (mm): 0.5 | ØD (mm): 10 | Ød (mm): 10 | R2 (mm): 10 | ℓ (mm): 20 | L (mm): 100
UDR50310010R (mm): 1 | ØD (mm): 10 | Ød (mm): 10 | R2 (mm): 10 | ℓ (mm): 20 | L (mm): 100
UDR50310020R (mm): 2 | ØD (mm): 10 | Ød (mm): 10 | R2 (mm): 10 | ℓ (mm): 20 | L (mm): 100
UDR50312005R (mm): 0.5 | ØD (mm): 12 | Ød (mm): 12 | R2 (mm): 12 | ℓ (mm): 24 | L (mm): 110
UDR50312010R (mm): 1 | ØD (mm): 12 | Ød (mm): 12 | R2 (mm): 12 | ℓ (mm): 24 | L (mm): 110
UDR50312020R (mm): 2 | ØD (mm): 12 | Ød (mm): 12 | R2 (mm): 12 | ℓ (mm): 24 | L (mm): 110
UDR50316005R (mm): 0.5 | ØD (mm): 16 | Ød (mm): 16 | R2 (mm): 16 | ℓ (mm): 32 | L (mm): 150
UDR50316010R (mm): 1 | ØD (mm): 16 | Ød (mm): 16 | R2 (mm): 16 | ℓ (mm): 32 | L (mm): 150
UDR50320005R (mm): 0.5 | ØD (mm): 20 | Ød (mm): 20 | R2 (mm): 20 | ℓ (mm): 40 | L (mm): 150
UDR50320010R (mm): 1 | ØD (mm): 20 | Ød (mm): 20 | R2 (mm): 20 | ℓ (mm): 40 | L (mm): 150

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