TURNING INSERTS ApplicationFor Cast IronApplicationFor Aluminum AlloyApplicationFor Aluminum Alloy ToleranceM ClassG ClassToleranceG ClassToleranceG Class ap (inch)ap (inch)ap (inch)ap (inch)ap (inch) TURNING INSERTS CLASSIFICATION 11° POSITIVE INSERTS WITH HOLE Breaker NameAand FeaturesPicture Cross SectionGeometry Flat Top Heavy cutting of cast iron Cast Iron Flat top. Most effective for unstable machining due to high edge strength. f (IPR) SPMW432 Flat Top For cast iron Cast Iron Most effective in unstable machining due to high edge strength. G class tolerance allows use on workpieces requiring close tolerances. f (IPR) SPGX432 15 ° POSITIVE INSERTS WITH HOLE Breaker Nameand FeaturesPicture Cross SectionGeometry For aluminum cutting Aluminum Alloy Flank Angled chipbreaker. 20° Sharp cutting edge produces excellent surface finishes. f (IPR) VDGX320.5R 20° POSITIVE INSERTS WITH HOLE Breaker Nameand FeaturesPicture Cross SectionGeometry For aluminum cutting Aluminum Alloy Flank Angled chipbreaker. 20° Sharp cutting edge produces excellent surface finishes. f (IPR) DEGX431RF For aluminum cutting Aluminum Alloy Flank Parallel chipbreaker. 25° Sharp cutting edge produces excellent surface finishes. f (IPR) DEGX431R A076