Cutting data standard values for the CB chip breaker geometries 3D-Chip Breaker -CB1 Corner Radius ap in mm fz in mm/rev. min. max. min. max. 0,1 mm 0,05 0,30 0,02 0,05 0,2 mm 0,06 0,40 0,03 0,08 0,4 mm 0,10 0,80 0,04 0,15 0,8 mm 0,15 1,00 0,08 0,20 1,2 mm 0,30 1,50 0,12 0,25 ▲ Finish and Superfinish ▲ Extremely sharp cutting edge geometry ▲ Depth of Cut ap: 0.05–1.5 mm ▲ Smallest cutting pressure for highest accuracies ▲ For machining of thin-walled and unstable workpieces 3D-Chip Breaker -CB2 Corner Radius ap in mm fz in mm/rev. min. max. min. max. 0,2 mm 0,50 0,80 0,08 0,12 0,4 mm 0,60 1,50 0,08 0,20 0,8 mm 0,70 1,50 0,15 0,30 1,2 mm 0,80 2,00 0,20 0,40 ▲ Semi-finish and Finish machining ▲ Negative edge preperation ▲ Cutting Depth ap: 0,5–2,0 mm ▲ High surface quality and tight tolerances ▲ Machining of solid workpieces under stable conditions 3D-Chip Breaker -CB3 Corner Radius ap in mm fz in mm/rev. min. max. min. max. 0,4 mm 1,00 3,00 0,10 0,20 0,8 mm 1,00 3,00 0,15 0,35 ▲ Medium and rough machining ▲ Highly aggressive chip breaker ▲ Cutting depth ap: 1,0–3,0 mm ▲ Stable component conditions necessary ▲ Cooling must be ensured -CB1 -CB2 -CB3 Turning Tools Cutting Data