As an Amazon Associate, we earn from qualifying purchases. AlTiCrN Finish, 4 Flutes, Corner Radius End Mill - 55HN45|284-000556 - Grainger GRAINGER APPROVED . 284-000556 Gallery Attributes Brand name, Manufacturer name, ManufacturerGRAINGER APPROVED Attribute00, SKU55HN45 Attribute01, MPN284-000556 Attribute02N/A Attribute03Carbide Attribute04AlTiCrN Attribute05Straight Attribute06, Attribute113/8 in Attribute07Fractional Inch Attribute080 in Attribute095/8 in Attribute102-1/2 in Attribute12, Attribute130.0000 in Attribute14Variable Attribute15Spiral Attribute164 Attribute17, Attribute18Right Hand Attribute19Individual Attribute20Non-Coolant Through Attribute21, qtyInStock0 Attribute22284 Attribute23Roughing/Finishing Attribute24, AttributeKey08Corner Radius Attribute25Single End Attribute26C2 Micrograin Attribute27Less Than240- Greater Than240HB; Less Than28-65Rc Attribute28Cast Iron; Stainless Steel; Steel; Super Alloy Attribute29Nickel; Stainless Steel; Titanium Attribute30M; S Attribute31Alloy Steel Attribute32K; M; P Attribute33Center Cutting Attribute3423172005 Attribute35, countryOfOriginUSA AttributeKey00Item? AttributeKey01Mfr. Model? AttributeKey02Catalog Page AttributeKey03Material - Machining AttributeKey04Finish - Machining AttributeKey05Shank Type - Machining AttributeKey06, height_Attrib, width_AttribMilling Dia. AttributeKey07Measurement System AttributeKey09Length of Cut AttributeKey10, length_AttribOverall Length AttributeKey11Shank Dia. AttributeKey12Neck Dia. AttributeKey13Neck Length AttributeKey14Helix Angle AttributeKey15Flute Type AttributeKey16Number of Flutes AttributeKey17Spiral Direction AttributeKey18Cutting Direction AttributeKey19Drilling Tool Configuration AttributeKey20Coolant Fed AttributeKey21Number of Coolant Holes AttributeKey22List Number AttributeKey23End Mill Application AttributeKey24End Mill Style AttributeKey25Single End/Double End AttributeKey26Material Grade - Machining AttributeKey27For Material Hardness AttributeKey28Material Applications AttributeKey29Primary Material Application AttributeKey30Primary Material Application ISO Code AttributeKey31Secondary Material Application AttributeKey32Secondary Material Application ISO Code AttributeKey33End Mill Cutting Type AttributeKey34UNSPSC AttributeKey35Country of Origin AttributeKey36Product Description DimensionUnitinch HazmatFalse Extra Product NameAlTiCrN Finish, 4 Flutes, Corner Radius End Mill - 55HN45|284-000556 - Grainger diameter, height, width0.375 length2.5 moq, multiple, tierMinQty11 tierPrice143.03 Distributor offers SellerSKUMOQIn stockMultiplePrices Grainger55HN45111 @ $43.03