Geometry overview of turning inserts WALTER positive basic shape Finishing Geometry Remarks / field of applications Workpiece material group P M

Geometry overview of turning inserts WALTER positive basic shape Finishing Geometry Remarks / field of applications Workpiece material group P M K N S H O Cut Main cutting edge Cut Corner radius mm f inch mm 1L High positive angle Low cutting forces, good chip control Finishing to roughing on aluminum Finishing on high temp alloys .004 .160 .10 4.0 .002 .014 .04 .35 A PF1(2A) Fine finishing applications Low positive cutting edge for increased strength Produces small chips in boring operations Produces excellent surface finishes .005 .080 .13 2.0 .003 .011 .08 2.8 PM1 (1A) Finishing and semi-finishing applications Low positive cutting edge for increased strength Excellent for turning and boring operations Produces excellent surface finishes .010 .100 .25 2.5 .004 .013 .10 .33 PM2 Finishing / semi-finishing applications Positive cutting edge for reduced forces Broad chip-control application range Excellent profiling capability Medium machining PM4 Semi-finishing to medium machining Low to medium feed rates Medium depths of cut Good chip control Roughing e M0T Geometry especially for round inserts Interrupted cuts H .020 .140 .50 3.5 .003 .013 .08 .34 0.040 .024 .160 .60 4.0 17, .004 .014 .10 .36 .039 -.433 1.0 11 .005 .051 .12 1.3 O PR5 Geometry especially for round inserts Heavy roughing Heavy industry, e.g. railways .039 .590 1.0 15 .008 .067 .20 1.7 CMW Cast iron machining with hard crust Interrupted cuts Stable cutting edge design f f .008 .024 .20 .60 .005 .020 .12 .50 Primary application Other application Comment cross sections show CCMT 3(2.5)2 09T308 or CCGT 3(2.5)2 09T308 ap inch A 449 Technical information Turning WALTER Valenite