Page 172 - Demo

170 ISCAR PRE-THREAD DRILLING WITH CHAMFERING CHAM-RING Body ConstructionThe CHAM-RING has two chamfering inserts designated XCGT %u2026 that provide a balanced and smooth cut during the chamfering operation for blind and through hole applications. The unique design of two chamfering inserts on the standard CHAM-RING enables a combination operation of drilling and chamfering.A constant speed and feed can be maintained during both operations, resulting in high quality of both the hole and the chamfer. The projection of the UNI-CHAM-DRILL inserted into the CHAM-RING can be adjusted for various drilling depths (table 3.5.1) in blind and through hole applications for the standard 30%u02da, 45%u02da and 60%u02da chamfers.Chamfering Holder - Position Range (mm)DCN/DCX*SDL max minDril Diameter DCN DCXDCNS 3D DCM 3.5D DCNS 5DL min L max L min L max L min L maxDC.. 075 7.5 7.9 12.7 18.6 12.4 21.9 15.7 33.6DC.. 080 8 8.4 13.6 19.2 14 23 23.6 40.9DC.. 085 8.5 8.9 12.3 21.1 15.1 26.6 18.7 38.1DC.. 090 9 9.4 12.8 23.1 15.6 27.1 21.8 41.1DC.. 095 9.5 9.9 12.2 22.8 17.2 29.2 26.8 42.2DC.. 100 10 10.4 12.6 28.2 14.3 28.3 32.8 48.2DC.. 105 10.5 10.9 13.9 29.8 14.4 29.4 31.7 50.8DC.. 110 11 11.4 14.4 31.4 18 31 34.7 53.4DC.. 115 11.5 11.9 14.1 31.4 15.6 33.1 34.0 54.4DC.. 120 12 12.4 15.1 33.4 19.2 35.2 36.9 57.3DC.. 125 12.5 12.9 15.6 35.8 19.3 37.3 40.6 60.8DC.. 130 13 13.4 17.8 37.6 21.4 38.4 43.8 64.1DC.. 135 13.5 13.9 16.1 38.2 19.5 39.5 42.8 65.2DC.. 140 14 14.4 18.0 40.8 21.5 41.5 46.0 69.3DC.. 145 14.5 14.9 16.4 39.7 20.1 42.1 45.3 68.7DC.. 150 15 15.9 18.5 41.9 25.2 43.7 48.5 71.9DC.. 160 16 16.9 26.2 51.6 26.3 49.3 58.2 83.6DC.. 170 17 17.9 22.6 49.0 28.4 52.4 56.6 83.0DC.. 180 18 18.9 25.1 52.5 31 57 61.1 88.5DC.. 190 19 19.9 28.3 58.3 32.3 63.3 66.3 96.3DC.. 200 20 20.9 38.3 68.4 36.6 67.1 78.3 108.3DC.. 210 21 21.9 33.9 63.3 75.9 105.3DC.. 220 22 22.9 37.3 66.7 81.3 110.7DC.. 230 23 23.9 40.7 70.1 86.7 116.1