User Guide

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Endmills - Technical Info
Endmills
Tech Info -
Adjustments for Straight-Line Ramps
Use this guide to determine the
maximum ramp length.
D = Tool Diameter
Ramp Angle Drop (per inch)
0.5° 0.0088
1° 0.0175
2° 0.0375
2.5° 0.0438
3° 0.0525
5° 0.0875
10° 0.1750
15° 0.2625
Tool Series Max Ramp Angle SFM Feed
Max Ramp
Depth
Max Ramp Length
XHP 7 Flute Finishers Not recommended - - - -
XHP 9 Flute Finishers Not recommended - - - -
XHP 11 Flute Finishers Not recommended - - - -
XHP 13 Flute Finishers Not recommended - - - -
XHP 5 Flute Aluminum &
Non Ferrous DLC
10° Slotting speed Slotting IPT x .65 75% of D (.75 x D) / drop per inch
XHP 5 Flute Variable
Index
2.5° Slotting speed Slotting IPT x .75 50% of D (.5 x D) / drop per inch
HP 7 Flute Finishers 2.5° Slotting speed Slotting IPT x .75 50% of D (.5 x D) / drop per inch
XHP 5 & 6 Flute Finishers Not recommended - - - -
XHP 6 Flute Finisher for
Inconel
Not recommended - - - -
XHP 4 Flute Variable
Index
2.5° Slotting speed Slotting IPT x .75 50% of D (.5 x D) / drop per inch
XHP 3 Flute Aluminum &
Non Ferrous ZRN
Helical ramp x 5 Same as chart Same as chart 100% of D (.75 x D) / drop per inch
XHP 3 Flute Roughers
Aluminum & Non Ferrous
ZRN
Helical ramp x 5 Same as chart Same as chart 100% of D (.75 x D) / drop per inch
XHP 2 Flute Aluminum
and Non Ferrous
15° Slotting speed Slotting IPT x .70 50% of D (.5 x D) / drop per inch
Straight-line ramp moves are an alternative method to enter the middle of a part. The
following guide shows speed, feed and ramp angle data for different extra-high per-
formance RedLine endmills.
Use the following guide for speed, feed and ramp angle parameters. Note that the
terms “Same as chart,” “Slotting speed in chart,” and “Slotting IPT,” and “Helical
ramp” reference the data shown in the speed and feed charts located in each tool
series section. Not all tools are designed to allow the chip clearance required for
straight-line ramping, as indicated in the guide.