Shoulder mill with extended flute with positve/negative geometry which utilises 30 off ADMX 16 or ADEX 16 single-sided inserts, cutting diameter 100 mm with 90 deg approach angle and 40 mm connection bore according to DIN 8030, 80 mm functional and 120 mm protrusion length, through coolant and differential pitch for deep shoulder milling and deep slot milling with a maximum depth of cut of 80 mm.