User Guide

ManualsBrandsRedLine Tools ManualsBall Nose End MillsRedLine Tools - .0200 Single End Ball Carbide End Mill, Uncoated (Bright) .0600 Flute Length, 4 Flute, 30° Helix Angle.2000 Length Below Shank, 1.5000 OAL - RET9018

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Endmills - Technical Info

Endmills

- Tech Info

- Use the speed and feed values shown for the slotting operation in the speed and feed charts for the

series of end mill being used.

- If the tool projection exceeds 2.5 x the tool diameter, adjust the slotting speeds and feeds by the chart

for long reach tool adjustments.

If the axial depth of cut (ADOC) is ≥50% of the tool diameter:

Radial depth of cut (RDOC), or step-over, is based on the desired finish. The lighter the step-over, the lower

the scallop height (material left uncut by the radius of the tool), and the better the finish.

This chart calculates approximate scallop height using the following formula:

h = Scallop height

ae = Radial step-over

R = Radius of end mill

(tool diameter x .5)

h ~ (ae²) / (8R)

Surface Finish

Tool

Diameter

Step-over %

of OD

Step-over

Actual

Approx

Scallop Height

1/8

10% .013 .0003

20% .025 .0013

30% .038 .0028

1/4

10% .025 .0006

20% .050 .0025

30% .075 .0056

3/8

10% .038 .0009

20% .075 .0038

30% .113 .0084

1/2

10% .050 .0013

20% .100 .0050

30% .150 .0113

3/4

10% .075 .0019

20% .150 .0075

30% .225 .0169

10% .100 .0025

20% .200 .0100

30% .300 .0225

Radial stepover