Helical Solutions
5/16" 4-Flute Solid Carbide Ball End Mill, APLUS - Helical Solutions 81678
MFR# 81678Series 4 Flute, Ball - Variable Pitch (Aplus), End Mills for Steels, Tool Steels, & Cast Iron
$102.47List $102.81
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Diameter5/16
Flutes4
MaterialSolid Carbide
CoatingAPLUS
Description
The Helical Solutions 81678 is a 5/16 4-flute Solid Carbide (Carbide) ball end mill with a APLUS finish for longer tool life. Suited for steel, stainless steel, cast iron. 1 length of cut, 2-1/2 overall length. Series 4 Flute, Ball - Variable Pitch (Aplus), End Mills for Steels, Tool Steels, & Cast Iron.
Specifications
ChipbreakerNo
Coating finishAPLUS
Coolant throughNo
Cutting directionRight Hand
End mill materialSolid Carbide
Extended reachNo
Flute directionRight Hand
Flute typeSpiral
Length of cut in1
Length typeStandard
Manufacturers catalog number81678
Material gradeCarbide
Material removal typeRoughing & Finishing
Mill diameter in5/16
Mill diameter tolerance+0.0000/-0.0020 in
Nose radius0.1563
Number of flutes4
Overall length in2-1/2
Overall length tolerance+0.0620/-0.0620 in
Primary workpiece materialSteel; Stainless Steel; Cast Iron
Reach length in1
Shank diameter in5/16
Shank diameter toleranceh6
Shank typeStraight-Cylindrical
Single or double endSingle
System of measurementFractional Inch
Tir maximum0.0005
Variable helixNo
Variable indexYes
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