SOLID END MILLS Coating or Substrate Size Range Neck Length Flutes Finish / Rough Page SOLID END MILLS TOOL NAVI Work Materials Product Name End Mills ap Upper :1st Recommendation Under : 2nd Recommendation N Square End Mill Medium (ap−3.2xDC) METRIC C2MHA DC 1.53−25−3xDC − 2 I282 55° Ball Nose End Mills Short / Medium (ap−3xDC) METRIC For hard brittle DC2SB RE 0.60.1−3−0.7xDC− 2 materials I272 Long neck (ap−20xDC) METRIC For hard brittle DC2XLB RE0.1−3 0.6xDC 1.7−5xDC 2 materials I274 I Tapered flute (ap−20xDC) METRIC C4LATB RE 6.70.5−2−20xDC− 4 I284 20° *** ap : Depth of Cut DC : Cutting Diameter RE : Ball Nose End Mill Radius I020