Boring tools | CoroBore® BR20 Silent Tools™, adaptor with Coromant Capto® coupling to CoroBore® BR20​​ ​ Metric (mm) Ordering code DCN DCX CNSC DCONMS LF 1 _ LF 2 _ WF 1 WF 2 OAL _ _ BD 1 CP _ [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [bar] C3-BR20D-B-173 28.00 36.00 3 32.00 173.00 172.80 2.55 2.55 192.00 25.0 70 C5-BR20D-E-242 55.00 71.00 3 50.00 242.00 241.70 6.25 6.25 272.00 50.0 70 C5-BR20D-F-240 70.00 90.00 3 50.00 240.00 239.70 8.00 8.00 270.00 63.0 70 C6-BR20D-G-278 89.00 116.00 3 63.00 278.00 277.70 12.00 12.00 316.00 80.0 70 C6-BR20D-G-378 89.00 116.00 3 63.00 378.00 377.70 12.00 12.00 416.00 80.0 70 C6-BR20D-H-278 115.00 150.00 3 63.00 278.00 277.70 27.00 27.00 316.00 104.0 70 C8-BR20D-H-388 115.00 150.00 3 80.00 388.00 387.70 27.00 27.00 436.00 104.0 70 ​ 399