MOLD FINISH MASTER SUMIBORON BNBP Type Ballnose Endmills ■ Recommended Cutting Conditions 1. Use a machine with high rigidity for stable cutting. 2. Non-water soluble coolant recommended. Supply as a mist or external coolant. Take fire prevention precautions to avoid fire hazards caused by sparks igniting during machining or tool breakage. 3. Shorten overhang as much as possible. 4. Adjust cutting conditions as necessary as machine rigidity and other conditions may vary. 5. Depth of cut shown in the table of conditions are maximum depths. Adjust the actual depth of cut to the desired machined surface finish. ap pf Work Material STAVAX, NAK80, SKD61 (Up to 52HRC) ELMAX, DC53, SKD11 improved (Up to 62HRC) YXR3, SKH (Up to 70HRC) RE LU Spindle Speed Feed Rate ap(㎜) pf(㎜) Spindle Speed Feed Rate ap(㎜) pf(㎜) Spindle Speed Feed Rate ap(㎜) pf(㎜) (mm) (mm) (min-1) (mm/min) (min-1) (mm/min) (min-1) (mm/min) 1.2 40,000 1,000 0.005 0.010 40,000 800 0.005 0.010 40,000 600 0.005 0.005 0.2 2.0 40,000 800 0.005 0.010 40,000 600 0.005 0.010 40,000 400 0.005 0.005 3.0 40,000 600 0.005 0.010 40,000 500 0.005 0.010 40,000 300 0.005 0.005 4.0 40,000 500 0.005 0.010 40,000 400 0.005 0.005 40,000 200 0.005 0.005 1.5 40,000 1,600 0.020 0.020 40,000 1,400 0.010 0.020 40,000 1,200 0.010 0.020 2.0 40,000 1,500 0.010 0.020 40,000 1,300 0.010 0.020 40,000 1,100 0.010 0.010 0.3 3.0 40,000 1,400 0.010 0.020 40,000 1,200 0.010 0.020 40,000 1,000 0.010 0.010 4.0 30,000 1,200 0.010 0.010 30,000 1,000 0.010 0.010 30,000 700 0.005 0.010 5.0 30,000 800 0.010 0.010 30,000 700 0.005 0.010 30,000 600 0.005 0.005 6.0 30,000 600 0.005 0.010 30,000 500 0.005 0.005 30,000 400 0.005 0.005 2.5 40,000 2,800 0.040 0.050 40,000 2,800 0.030 0.040 40,000 2,200 0.020 0.030 3.0 40,000 2,600 0.040 0.050 40,000 2,600 0.030 0.040 40,000 2,100 0.020 0.030 0.5 4.0 40,000 2,400 0.030 0.050 40,000 2,400 0.020 0.030 40,000 2,000 0.020 0.020 6.0 25,000 1,500 0.020 0.030 25,000 1,500 0.010 0.020 25,000 1,300 0.010 0.010 8.0 16,000 1,200 0.020 0.020 16,000 1,100 0.010 0.020 16,000 850 0.010 0.010 0.75 4.0 32,000 2,400 0.030 0.030 32,000 2,200 0.020 0.030 32,000 2,000 0.020 0.020 1.0 5.5 40,000 4,000 0.050 0.050 40,000 4,000 0.030 0.030 40,000 3,000 0.020 0.030 8.0 32,000 3,000 0.030 0.050 32,000 2,600 0.020 0.030 32,000 2,200 0.010 0.020 I Endmills SUMIBORON Square 2 Flutes 3 Flutes 4 Flutes 6 Flutes 8 Flutes Radius Ballnose DLC SUMIDIA Coat Long Neck Uncoated CBN PCD I137