- Screwdriver male with reinforced rod and helical milling cutters on the right 35 ° RSP for threads for blind holes. - Vertex: mold C / 35º RSP of 2-3 phases. - Threads: metric DIN ISO 13. - Flanks: relief-ground.
The cylindrical shape ZYA is mainly used peripherally; -The variant with end hole (ST-BO) is particularly suitable for face-down use; -Felt points with metal inserts (MS) are used for increased stock removal when pre-polishing with diamond polishing pastes.
Round file with circumferential cut. Version with tang. Shape F according to DIN 7261. Suitable for work on radii and for filing profiles with inner radii.
