® CMT Roughers and Finishers Roughers w D Cutting Diameter CHx45˚ 30˚ Grade P M K N S H CR3      ≤ 56 HRc InsertType Ordering Code D No. ofFlutes W CH S20 CRM160 F W50 16.0 6 5.0 0.4 S20 CRM170 F W50 17.0 6 5.0 0.4 S20 CRM200 F W50 20.0 6 5.0 0.4 Order example: CRM170 F W50 CR3 Finishers D Cutting Diameter 30˚ Grade P M K N S H CR3      ≤ 56 HRc InsertType Ordering Code D No. ofFlutes W R S20 CEM160 F W50 16.0 6 5.0 0.1 S20 CEM170 F W50 17.0 6 5.0 0.1 S20 CEM200 F W50 20.0 6 5.0 0.1 Order example: CEM200 F W50 CR3 The CMT Roughers should be used with the toolholders shown on page B14-33 First choice Alternative B14-32