PROFESSIONAL flat counterbore for MEDIUM through hole M4 PRO.36804

Thread - M4

Ø head - 8mm

Ø shank - 5mm

Ø pin - 4.5mm

HSS-Co 5% DIN 373

• MEDIUM - for through hole grade medium according to DIN ISO 373
  
• Flat counterbore with spiral fluted cutting edges and a countersink angle of 180°
• The pin diameter is adapted to the respective application
• The thread-hole is cut after the sinking operation
• For countersinking hexagon screws according to DIN 912, 6912, 7984 and cylindrical screws with slot according to ISO 1207 (DIN 84)

Bulk buying