ISO designation system for inserts 1 2 3 6 8 9 Insert shape V 35° Included angle D 55° E 75° C 80° M 86° K 55° Included angle B 82° A 85° L 90° Other shapes P 108° H 120° O 135° R - S 90° T 60° W 80° Clearance angle α α A 3° F 25° B 5° G 30° C 7° N 0° D 15° P 11° E 20° O Clearance angles not included within the standard for which particular information is necessary. Tolerances IC BS S IC BS IC± BS S mm inch mm inch mm inch A 0,025 .0010 0,005 .0002 0,025 .001 F 0,013 .0005 0,005 .0002 0,025 .001 C 0,025 .0010 0,013 .0005 0,025 .001 H 0,013 .0005 0,013 .0005 0,025 .001 E 0,025 .0010 0,025 .0010 0,025 .001 G 0,025 .0010 0,025 .0010 0,13 .005 J 0,05-0,15* .002-.006* 0,005 .0002 0,025 .001 K 0,05-0,15* .002-.006* 0,013 .0005 0,025 .001 L 0,05-0,15* .002-.006* 0,025 .0010 0,025 .001 M 0,05-0,15* .002-.006* 0,05-0,20* .003-.008* 0,13 .005 N 0,05-0,15* .002-.006* 0,05-0,20* .003-.008* 0,025 .001 U 0,08-0,25* .003-.010* 0,13-0,38* .005-.015* 0,13 .005 * Depends on insert size Insert thickness S S Code mm inch mm inch 1,59 1/16 01 1 2,38 3/32 02 1.5 3,18 1/8 03 2 3,97 5/32 T3 2.5 4,76 3/16 04 3 5,56 7/32 05 3.5 6,35 1/4 06 4 7,94 5/16 07 5 9,52 3/8 09 6 Cutting edge T S F E P K R Sharp T S F E P K R rounded T S F E P K R chamfered T S F E P K R Chamfered and honed T S F E P K R Double-chamfered T S F E P K R Double-chamfered and honed T S F E P K R Round chamfer Direction of cut N L R CBN and PCD segment orientation .. .. C N M G 12 04 08 E N - M50 C N G A 12 04 08 S N - 020D _ B 3 - Q C N M G 4 3 2 E N - M50 C N G A 4 3 2 S N - 020D _ B 3 - Q 7 Corner radius RE Code RN 00 RC MO mm inch mm inch ≤ 0,05 .0015 00 X0 0,1 .004 01 0 0,2 .008 02 .5 0,4 1/64 04 1 0,8 1/32 08 2 1,2 3/64 12 3 1,6 1/16 16 4 2,0 5/64 20 5 2,4 3/32 24 6 2,8 7/64 28 7 3,2 1/8 32 8 Indexable inserts – metric Indexable inserts – inch Indexable inserts, CBN, ceramic – metric Indexable inserts, CBN, ceramic – inch 1 2 3 4 5 6 7 8 9 13 1 2 3 4 5 6 7 8 9 13 1 2 3 4 5 6 7 8 9 13 10 11 12 1 2 3 4 5 6 7 8 9 13 10 11 12 Turning Tools Technical Information
