1/4 4-FLUTE X-LONG CENTER CUT ENDMILL1/4 4-FLUTE X-LONG CENTER CUT ENDMILL 55803, 3-9/16" OAL, 1-3/4" LOC, 3/8" SHANK Extra-Long, Center Cutting, Single End, Cobalt Endmill, 30-Degree Helix, 3-9/16" Overall Length, 1-3/4" Length of Cut, 3/8" Shank Diameter, 4-Flute. For reaching down inside deep cavities or for finishing the sides of an extremely thick part! The standard width of cut on these finishing endmills is 10% of the diameter of the cutter. And the maximum depth of cut is only 1-1/2" times the diameter. Thus on a 1/2" endmill the width of cut is only .050" with the depth of cut only being 3/4". You will have to adjust your width of cuts depth of cuts accordingly!
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