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Castelar Tool
SKU: V438-3-0250-04-40-R21-020-ARS
0.25"Ø x 0.375" LOC x 2.125"Reach x 4" OAL - 0.02" Rad - ALROC-S Coated - V438 Reduced Neck 4F Carbide Variable End Mill
Series: V438 Reduced NeckFlutes: 4Cutting Diameter: 0.25"Length of Cut: 0.375"Overall Length: 4"Shank Diameter: 0.25"End Style: 0.02" Corner RadiusCoating: ALROC-SReach: 3.125"Center Cutting: Yes"Shank Tolerance: h6CAD$50.2118 in stock -
Castelar Tool
SKU: V438-3-0250-05-20-020-ARS
0.25"Ø x 0.5" LOC x 2" OAL - 0.02" Rad - ALROC-S Coated - V438 4F Carbide Variable End Mill
Series: V438Flutes: 4Cutting Diameter: 0.25"Length of Cut: 0.5"Overall Length: 2"Shank Diameter: 0.25"End Style: 0.02" Corner RadiusCoating: ALROC-SCenter Cutting: Yes"Shank Tolerance: h6CAD$19.71 -
Castelar Tool
SKU: 4U3-0250-05-20-020A
0.25"Ø x 0.5" LOC x 2" OAL - 0.02" Rad - TiAlN Coated - Perfect Pitch 4 4F Carbide Variable End Mill
Series: Perfect Pitch 4Flutes: 4Cutting Diameter: 0.25"Length of Cut: 0.5"Overall Length: 2"Shank Diameter: 0.25"End Style: 0.02" Corner RadiusCoating: TiAlNCenter Cutting: Yes"Shank Tolerance: h6CAD$31.18 -
Castelar Tool
SKU: V438-0-0250-05-20-ARS
0.25"Ø x 0.5" LOC x 2" OAL- Square End - ALROC-S Coated - V438 4F Carbide Variable End Mill
Series: V438Flutes: 4Cutting Diameter: 0.25"Length of Cut: 0.5"Overall Length: 2"Shank Diameter: 0.25"End Style: SquareCoating: ALROC-SCenter Cutting: Yes"Shank Tolerance: h6CAD$19.09 -
Castelar Tool
SKU: 4U0-0250-05-20A
0.25"Ø x 0.5" LOC x 2" OAL- Square End - TiAlN Coated - Perfect Pitch 4 4F Carbide Variable End Mill
Series: Perfect Pitch 4Flutes: 4Cutting Diameter: 0.25"Length of Cut: 0.5"Overall Length: 2"Shank Diameter: 0.25"End Style: SquareCoating: TiAlNCenter Cutting: Yes"Shank Tolerance: h6CAD$22.46 -
Castelar Tool
SKU: V438-3-0250-08-25-020-ARS
0.25"Ø x 0.75" LOC x 2.5" OAL - 0.02" Rad - ALROC-S Coated - V438 4F Carbide Variable End Mill
Series: V438Flutes: 4Cutting Diameter: 0.25"Length of Cut: 0.75"Overall Length: 2.5"Shank Diameter: 0.25"End Style: 0.02" Corner RadiusCoating: ALROC-SCenter Cutting: Yes"Shank Tolerance: h6CAD$20.3627 in stock -
Castelar Tool
SKU: V438-3-0250-08-25-020-ARS-WF
0.25"Ø x 0.75" LOC x 2.5" OAL - 0.02" Rad - ALROC-S Coated - V438 4F Carbide Variable End Mill With Weldon Flat
Series: V438Flutes: 4Cutting Diameter: 0.25"Length of Cut: 0.75"Overall Length: 2.5"Shank Diameter: 0.25"End Style: 0.02" Corner RadiusCoating: ALROC-SCenter Cutting: Yes"Shank Tolerance: h6Weldon Flat: YesCAD$21.8931 in stock -
Castelar Tool
SKU: 4U3-0250-08-25-020A
0.25"Ø x 0.75" LOC x 2.5" OAL - 0.02" Rad - TiAlN Coated - Perfect Pitch 4 4F Carbide Variable End Mill
Series: Perfect Pitch 4Flutes: 4Cutting Diameter: 0.25"Length of Cut: 0.75"Overall Length: 2.5"Shank Diameter: 0.25"End Style: 0.02" Corner RadiusCoating: TiAlNCenter Cutting: Yes"Shank Tolerance: h6CAD$32.294 in stock -
Castelar Tool
SKU: V438-3-0250-08-25-030-ARS
0.25"Ø x 0.75" LOC x 2.5" OAL - 0.03" Rad - ALROC-S Coated - V438 4F Carbide Variable End Mill
Series: V438Flutes: 4Cutting Diameter: 0.25"Length of Cut: 0.75"Overall Length: 2.5"Shank Diameter: 0.25"End Style: 0.03" Corner RadiusCoating: ALROC-SCenter Cutting: Yes"Shank Tolerance: h6CAD$20.3638 in stock -
Castelar Tool
SKU: V438-3-0250-08-25-060-ARS
0.25"Ø x 0.75" LOC x 2.5" OAL - 0.06" Rad - ALROC-S Coated - V438 4F Carbide Variable End Mill
Series: V438Flutes: 4Cutting Diameter: 0.25"Length of Cut: 0.75"Overall Length: 2.5"Shank Diameter: 0.25"End Style: 0.06" Corner RadiusCoating: ALROC-SCenter Cutting: Yes"Shank Tolerance: h6CAD$22.29 -
Castelar Tool
SKU: V438-1-0250-08-25-ARS
0.25"Ø x 0.75" LOC x 2.5" OAL- Ballnose - ALROC-S Coated - V438 4F Carbide Variable End Mill
Series: V438Flutes: 4Cutting Diameter: 0.25"Length of Cut: 0.75"Overall Length: 2.5"Shank Diameter: 0.25"End Style: BallnoseCoating: ALROC-SCenter Cutting: Yes"Shank Tolerance: h6CAD$25.0047 in stock -
Castelar Tool
SKU: 4U1-0250-08-25A
0.25"Ø x 0.75" LOC x 2.5" OAL- Ballnose - TiAlN Coated - Perfect Pitch 4 4F Carbide Variable End Mill
Series: Perfect Pitch 4Flutes: 4Cutting Diameter: 0.25"Length of Cut: 0.75"Overall Length: 2.5"Shank Diameter: 0.25"End Style: BallnoseCoating: TiAlNCenter Cutting: Yes"Shank Tolerance: h6CAD$36.37 -
Castelar Tool
SKU: V438-0-0250-08-25-ARS
0.25"Ø x 0.75" LOC x 2.5" OAL- Square End - ALROC-S Coated - V438 4F Carbide Variable End Mill
Series: V438Flutes: 4Cutting Diameter: 0.25"Length of Cut: 0.75"Overall Length: 2.5"Shank Diameter: 0.25"End Style: SquareCoating: ALROC-SCenter Cutting: Yes"Shank Tolerance: h6CAD$17.6314 in stock -
Castelar Tool
SKU: 4U0-0250-08-25A
0.25"Ø x 0.75" LOC x 2.5" OAL- Square End - TiAlN Coated - Perfect Pitch 4 4F Carbide Variable End Mill
Series: Perfect Pitch 4Flutes: 4Cutting Diameter: 0.25"Length of Cut: 0.75"Overall Length: 2.5"Shank Diameter: 0.25"End Style: SquareCoating: TiAlNCenter Cutting: Yes"Shank Tolerance: h6CAD$28.07 -
Castelar Tool
SKU: V438-3-0250-10-30-020-ARS
0.25"Ø x 1" LOC x 3" OAL - 0.02" Rad - ALROC-S Coated - V438 4F Carbide Variable End Mill
Series: V438Flutes: 4Cutting Diameter: 0.25"Length of Cut: 1"Overall Length: 3"Shank Diameter: 0.25"End Style: 0.02" Corner RadiusCoating: ALROC-SCenter Cutting: Yes"Shank Tolerance: h6CAD$24.0121 in stock -
Castelar Tool
SKU: 4U3-0250-10-30-020A
0.25"Ø x 1" LOC x 3" OAL - 0.02" Rad - TiAlN Coated - Perfect Pitch 4 4F Carbide Variable End Mill
Series: Perfect Pitch 4Flutes: 4Cutting Diameter: 0.25"Length of Cut: 1"Overall Length: 3"Shank Diameter: 0.25"End Style: 0.02" Corner RadiusCoating: TiAlNCenter Cutting: Yes"Shank Tolerance: h6CAD$32.89 -
Castelar Tool
SKU: V438-0-0250-10-30-ARS
0.25"Ø x 1" LOC x 3" OAL- Square End - ALROC-S Coated - V438 4F Carbide Variable End Mill
Series: V438Flutes: 4Cutting Diameter: 0.25"Length of Cut: 1"Overall Length: 3"Shank Diameter: 0.25"End Style: SquareCoating: ALROC-SCenter Cutting: Yes"Shank Tolerance: h6CAD$21.6025 in stock -
Castelar Tool
SKU: 4U0-0250-10-30A
0.25"Ø x 1" LOC x 3" OAL- Square End - TiAlN Coated - Perfect Pitch 4 4F Carbide Variable End Mill
Series: Perfect Pitch 4Flutes: 4Cutting Diameter: 0.25"Length of Cut: 1"Overall Length: 3"Shank Diameter: 0.25"End Style: SquareCoating: TiAlNCenter Cutting: Yes"Shank Tolerance: h6CAD$28.39 -
Castelar Tool
SKU: V438-3-0312-04-25-020-ARS
0.3125"Ø x 0.375" LOC x 2.5" OAL - 0.02" Rad - ALROC-S Coated - V438 4F Carbide Variable End Mill
Series: V438Flutes: 4Cutting Diameter: 0.3125"Length of Cut: 0.375"Overall Length: 2.5"Shank Diameter: 0.3125"End Style: 0.02" Corner RadiusCoating: ALROC-SCenter Cutting: Yes"Shank Tolerance: h6CAD$24.01 -
Castelar Tool
SKU: 4U3-0312-04-25-020A
0.3125"Ø x 0.375" LOC x 2.5" OAL - 0.02" Rad - TiAlN Coated - Perfect Pitch 4 4F Carbide Variable End Mill
Series: Perfect Pitch 4Flutes: 4Cutting Diameter: 0.3125"Length of Cut: 0.375"Overall Length: 2.5"Shank Diameter: 0.3125"End Style: 0.02" Corner RadiusCoating: TiAlNCenter Cutting: Yes"Shank Tolerance: h6CAD$38.24 -
Castelar Tool
SKU: V438-3-0312-04-25-030-ARS
0.3125"Ø x 0.375" LOC x 2.5" OAL - 0.03" Rad - ALROC-S Coated - V438 4F Carbide Variable End Mill
Series: V438Flutes: 4Cutting Diameter: 0.3125"Length of Cut: 0.375"Overall Length: 2.5"Shank Diameter: 0.3125"End Style: 0.03" Corner RadiusCoating: ALROC-SCenter Cutting: Yes"Shank Tolerance: h6CAD$24.01 -
Castelar Tool
SKU: 4U3-0312-04-25-030A
0.3125"Ø x 0.375" LOC x 2.5" OAL - 0.03" Rad - TiAlN Coated - Perfect Pitch 4 4F Carbide Variable End Mill
Series: Perfect Pitch 4Flutes: 4Cutting Diameter: 0.3125"Length of Cut: 0.375"Overall Length: 2.5"Shank Diameter: 0.3125"End Style: 0.03" Corner RadiusCoating: TiAlNCenter Cutting: Yes"Shank Tolerance: h6CAD$38.247 in stock -
Castelar Tool
SKU: V438-0-0312-04-25-ARS
0.3125"Ø x 0.375" LOC x 2.5" OAL- Square End - ALROC-S Coated - V438 4F Carbide Variable End Mill
Series: V438Flutes: 4Cutting Diameter: 0.3125"Length of Cut: 0.375"Overall Length: 2.5"Shank Diameter: 0.3125"End Style: SquareCoating: ALROC-SCenter Cutting: Yes"Shank Tolerance: h6CAD$22.80 -
Castelar Tool
SKU: 4U0-0312-04-25A
0.3125"Ø x 0.375" LOC x 2.5" OAL- Square End - TiAlN Coated - Perfect Pitch 4 4F Carbide Variable End Mill
Series: Perfect Pitch 4Flutes: 4Cutting Diameter: 0.3125"Length of Cut: 0.375"Overall Length: 2.5"Shank Diameter: 0.3125"End Style: SquareCoating: TiAlNCenter Cutting: Yes"Shank Tolerance: h6CAD$38.71 -
Castelar Tool
SKU: V438-3-0312-08-25-020-ARS
0.3125"Ø x 0.8125" LOC x 2.5" OAL - 0.02" Rad - ALROC-S Coated - V438 4F Carbide Variable End Mill
Series: V438Flutes: 4Cutting Diameter: 0.3125"Length of Cut: 0.8125"Overall Length: 2.5"Shank Diameter: 0.3125"End Style: 0.02" Corner RadiusCoating: ALROC-SCenter Cutting: Yes"Shank Tolerance: h6CAD$26.0220 in stock -
Castelar Tool
SKU: 4U3-0312-08-25-020A
0.3125"Ø x 0.8125" LOC x 2.5" OAL - 0.02" Rad - TiAlN Coated - Perfect Pitch 4 4F Carbide Variable End Mill
Series: Perfect Pitch 4Flutes: 4Cutting Diameter: 0.3125"Length of Cut: 0.8125"Overall Length: 2.5"Shank Diameter: 0.3125"End Style: 0.02" Corner RadiusCoating: TiAlNCenter Cutting: Yes"Shank Tolerance: h6CAD$40.592 in stock -
Castelar Tool
SKU: V438-3-0312-08-25-030-ARS
0.3125"Ø x 0.8125" LOC x 2.5" OAL - 0.03" Rad - ALROC-S Coated - V438 4F Carbide Variable End Mill
Series: V438Flutes: 4Cutting Diameter: 0.3125"Length of Cut: 0.8125"Overall Length: 2.5"Shank Diameter: 0.3125"End Style: 0.03" Corner RadiusCoating: ALROC-SCenter Cutting: Yes"Shank Tolerance: h6CAD$26.0223 in stock -
Castelar Tool
SKU: 4U3-0312-08-25-030A
0.3125"Ø x 0.8125" LOC x 2.5" OAL - 0.03" Rad - TiAlN Coated - Perfect Pitch 4 4F Carbide Variable End Mill
Series: Perfect Pitch 4Flutes: 4Cutting Diameter: 0.3125"Length of Cut: 0.8125"Overall Length: 2.5"Shank Diameter: 0.3125"End Style: 0.03" Corner RadiusCoating: TiAlNCenter Cutting: Yes"Shank Tolerance: h6CAD$40.59 -
Castelar Tool
SKU: V438-1-0312-08-25-ARS
0.3125"Ø x 0.8125" LOC x 2.5" OAL- Ballnose - ALROC-S Coated - V438 4F Carbide Variable End Mill
Series: V438Flutes: 4Cutting Diameter: 0.3125"Length of Cut: 0.8125"Overall Length: 2.5"Shank Diameter: 0.3125"End Style: BallnoseCoating: ALROC-SCenter Cutting: Yes"Shank Tolerance: h6CAD$32.42 -
Castelar Tool
SKU: V438-0-0312-08-25-ARS
0.3125"Ø x 0.8125" LOC x 2.5" OAL- Square End - ALROC-S Coated - V438 4F Carbide Variable End Mill
Series: V438Flutes: 4Cutting Diameter: 0.3125"Length of Cut: 0.8125"Overall Length: 2.5"Shank Diameter: 0.3125"End Style: SquareCoating: ALROC-SCenter Cutting: Yes"Shank Tolerance: h6CAD$24.4120 in stock -
Castelar Tool
SKU: 4U0-0312-08-25A
0.3125"Ø x 0.8125" LOC x 2.5" OAL- Square End - TiAlN Coated - Perfect Pitch 4 4F Carbide Variable End Mill
Series: Perfect Pitch 4Flutes: 4Cutting Diameter: 0.3125"Length of Cut: 0.8125"Overall Length: 2.5"Shank Diameter: 0.3125"End Style: SquareCoating: TiAlNCenter Cutting: Yes"Shank Tolerance: h6CAD$40.597 in stock -
Castelar Tool
SKU: V438-3-0375-05-40-R21-030-ARS
0.375"Ø x 0.5" LOC x 2.125"Reach x 4" OAL - 0.03" Rad - ALROC-S Coated - V438 Reduced Neck 4F Carbide Variable End Mill
Series: V438 Reduced NeckFlutes: 4Cutting Diameter: 0.375"Length of Cut: 0.5"Overall Length: 4"Shank Diameter: 0.375"End Style: 0.03" Corner RadiusCoating: ALROC-SReach: 2.125"Center Cutting: Yes"Shank Tolerance: h6CAD$55.1620 in stock -
Castelar Tool
SKU: V438-3-0375-05-25-030-ARS
0.375"Ø x 0.5" LOC x 2.5" OAL - 0.03" Rad - ALROC-S Coated - V438 4F Carbide Variable End Mill
Series: V438Flutes: 4Cutting Diameter: 0.375"Length of Cut: 0.5"Overall Length: 2.5"Shank Diameter: 0.375"End Style: 0.03" Corner RadiusCoating: ALROC-SCenter Cutting: Yes"Shank Tolerance: h6CAD$28.60 -
Castelar Tool
SKU: 4U3-0375-05-25-030A
0.375"Ø x 0.5" LOC x 2.5" OAL - 0.03" Rad - TiAlN Coated - Perfect Pitch 4 4F Carbide Variable End Mill
Series: Perfect Pitch 4Flutes: 4Cutting Diameter: 0.375"Length of Cut: 0.5"Overall Length: 2.5"Shank Diameter: 0.375"End Style: 0.03" Corner RadiusCoating: TiAlNCenter Cutting: Yes"Shank Tolerance: h6CAD$42.664 in stock -
Castelar Tool
SKU: V438-0-0375-05-25-ARS
0.375"Ø x 0.5" LOC x 2.5" OAL- Square End - ALROC-S Coated - V438 4F Carbide Variable End Mill
Series: V438Flutes: 4Cutting Diameter: 0.375"Length of Cut: 0.5"Overall Length: 2.5"Shank Diameter: 0.375"End Style: SquareCoating: ALROC-SCenter Cutting: Yes"Shank Tolerance: h6CAD$26.35 -
Castelar Tool
SKU: 4U0-0375-05-25A
0.375"Ø x 0.5" LOC x 2.5" OAL- Square End - TiAlN Coated - Perfect Pitch 4 4F Carbide Variable End Mill
Series: Perfect Pitch 4Flutes: 4Cutting Diameter: 0.375"Length of Cut: 0.5"Overall Length: 2.5"Shank Diameter: 0.375"End Style: SquareCoating: TiAlNCenter Cutting: Yes"Shank Tolerance: h6CAD$39.85 -
Castelar Tool
SKU: 4U3-0375-10-25-030A
0.375"Ø x 1" LOC x 2.5" OAL - 0.03" Rad - TiAlN Coated - Perfect Pitch 4 4F Carbide Variable End Mill
Series: Perfect Pitch 4Flutes: 4Cutting Diameter: 0.375"Length of Cut: 1"Overall Length: 2.5"Shank Diameter: 0.375"End Style: 0.03" Corner RadiusCoating: TiAlNCenter Cutting: Yes"Shank Tolerance: h6CAD$46.1220 in stock -
Castelar Tool
SKU: 4U0-0375-10-25A
0.375"Ø x 1" LOC x 2.5" OAL- Square End - TiAlN Coated - Perfect Pitch 4 4F Carbide Variable End Mill
Series: Perfect Pitch 4Flutes: 4Cutting Diameter: 0.375"Length of Cut: 1"Overall Length: 2.5"Shank Diameter: 0.375"End Style: SquareCoating: TiAlNCenter Cutting: Yes"Shank Tolerance: h6CAD$42.366 in stock -
Castelar Tool
SKU: V438-3-0375-10-30-030-ARS
0.375"Ø x 1" LOC x 3" OAL - 0.03" Rad - ALROC-S Coated - V438 4F Carbide Variable End Mill
Series: V438Flutes: 4Cutting Diameter: 0.375"Length of Cut: 1"Overall Length: 3"Shank Diameter: 0.375"End Style: 0.03" Corner RadiusCoating: ALROC-SCenter Cutting: Yes"Shank Tolerance: h6CAD$32.8213 in stock -
Castelar Tool
SKU: V438-3-0375-10-30-030-ARS-WF
0.375"Ø x 1" LOC x 3" OAL - 0.03" Rad - ALROC-S Coated - V438 4F Carbide Variable End Mill With Weldon Flat
Series: V438Flutes: 4Cutting Diameter: 0.375"Length of Cut: 1"Overall Length: 3"Shank Diameter: 0.375"End Style: 0.03" Corner RadiusCoating: ALROC-SCenter Cutting: Yes"Shank Tolerance: h6Weldon Flat: YesCAD$32.82 -
Castelar Tool
SKU: V438-3-0375-10-30-060-ARS
0.375"Ø x 1" LOC x 3" OAL - 0.06" Rad - ALROC-S Coated - V438 4F Carbide Variable End Mill
Series: V438Flutes: 4Cutting Diameter: 0.375"Length of Cut: 1"Overall Length: 3"Shank Diameter: 0.375"End Style: 0.06" Corner RadiusCoating: ALROC-SCenter Cutting: Yes"Shank Tolerance: h6CAD$32.8240 in stock -
Castelar Tool
SKU: V438-1-0375-10-30-ARS
0.375"Ø x 1" LOC x 3" OAL- Ballnose - ALROC-S Coated - V438 4F Carbide Variable End Mill
Series: V438Flutes: 4Cutting Diameter: 0.375"Length of Cut: 1"Overall Length: 3"Shank Diameter: 0.375"End Style: BallnoseCoating: ALROC-SCenter Cutting: Yes"Shank Tolerance: h6CAD$37.82 -
Castelar Tool
SKU: 4U1-0375-10-30A
0.375"Ø x 1" LOC x 3" OAL- Ballnose - TiAlN Coated - Perfect Pitch 4 4F Carbide Variable End Mill
Series: Perfect Pitch 4Flutes: 4Cutting Diameter: 0.375"Length of Cut: 1"Overall Length: 3"Shank Diameter: 0.375"End Style: BallnoseCoating: TiAlNCenter Cutting: Yes"Shank Tolerance: h6CAD$53.9810 in stock -
Castelar Tool
SKU: V438-0-0375-10-30-ARS
0.375"Ø x 1" LOC x 3" OAL- Square End - ALROC-S Coated - V438 4F Carbide Variable End Mill
Series: V438Flutes: 4Cutting Diameter: 0.375"Length of Cut: 1"Overall Length: 3"Shank Diameter: 0.375"End Style: SquareCoating: ALROC-SCenter Cutting: Yes"Shank Tolerance: h6CAD$32.1846 in stock -
Castelar Tool
SKU: V438-0-0375-10-40-ARS
0.375"Ø x 1" LOC x 4" OAL- Square End - ALROC-S Coated - V438 4F Carbide Variable End Mill
Series: V438Flutes: 4Cutting Diameter: 0.375"Length of Cut: 1"Overall Length: 4"Shank Diameter: 0.375"End Style: SquareCoating: ALROC-SCenter Cutting: Yes"Shank Tolerance: h6CAD$37.5013 in stock -
Castelar Tool
SKU: V438-3-0375-13-30-030-ARS
0.375"Ø x 1.25" LOC x 3" OAL - 0.03" Rad - ALROC-S Coated - V438 4F Carbide Variable End Mill
Series: V438Flutes: 4Cutting Diameter: 0.375"Length of Cut: 1.25"Overall Length: 3"Shank Diameter: 0.375"End Style: 0.03" Corner RadiusCoating: ALROC-SCenter Cutting: Yes"Shank Tolerance: h6CAD$33.6224 in stock -
Castelar Tool
SKU: V438-0-0375-13-30-ARS
0.375"Ø x 1.25" LOC x 3" OAL- Square End - ALROC-S Coated - V438 4F Carbide Variable End Mill
Series: V438Flutes: 4Cutting Diameter: 0.375"Length of Cut: 1.25"Overall Length: 3"Shank Diameter: 0.375"End Style: SquareCoating: ALROC-SCenter Cutting: Yes"Shank Tolerance: h6CAD$32.9820 in stock -
Castelar Tool
SKU: V438-3-0437-06-28-030-ARS
0.4375"Ø x 0.625" LOC x 2.75" OAL - 0.03" Rad - ALROC-S Coated - V438 4F Carbide Variable End Mill
Series: V438Flutes: 4Cutting Diameter: 0.4375"Length of Cut: 0.625"Overall Length: 2.75"Shank Diameter: 0.4375"End Style: 0.03" Corner RadiusCoating: ALROC-SCenter Cutting: Yes"Shank Tolerance: h6CAD$37.28