ROUND LINE MARKING OF SOLID CARBIDE MILLING CUTTERS Example EXAMPLE 1 Designation 47C-370777RQ01 Marking D.375 L.75 R.015 C.375 D Diameter 0.375 Nominal cutter diameter in inches Ap Cutting length 0.750 Nominal cutting length in inches C Chamfer 0.015 Nominal size of chamfer in inches W Weldon-shank 0.375 Nominal diameter of shank in inches EXAMPLE 2 Designation 47J-5010S4RC06 Marking D.500 L1.00 R.060 C.500 D Diameter 0.500 Nominal cutter diameter in inches Ap Cutting length 1.000 Nominal cutting length in inches R Radius 0.060 Nominal corner radius in inches C Weldon-shank 0.500 Nominal diameter of shank in inches 455