408 / | HD | CUTTING BY USE OF ROTATING AXIALLY MOVING TOOL |
186 | TOOL-SUPPORT WITH MEANS TO PERMIT POSITIONING OF THE TOOL RELATIVE TO SUPPORT {5} | |
187 | DF | .~> Pivotable tool {1} |
189 | DF | .~> Tool having stepped cutting edges {3} |
195 | DF | .~> Including means to "form" depression in work |
196 | DF | .~> Including central-lead |
197 | DF | .~> Including tool-holding clamp and clamp actuator {1} |