| 摘要 |
An element which defines a support pad and/or a guide bar adapted to be mounted in a seat of a cutter head of a deep hole drill comprises a body which defines a longitudinal direction and a cross-direction. The body includes an inner mounting side and an opposing outer side. The outer side includes a contact surface which is adapted to engage a wall of a hole being drilled. The outer side also includes a countersink extending across the outer side in a direction transversely of the longitudinal direction. An edge of the contact surface facing toward a center of the body forms an angle with the longitudinal direction in the range of 55°±10°. |
