Recommended values for drilling Xtra tec Point Drill B401x Material A48-40B (0 6025) cast iron, ferritic 180-200 HB Power requirement 1 P Hp 27 2

Recommended values for drilling Xtra tec Point Drill B401x Material A48-40B (0.6025) cast iron, ferritic 180-200 HB Power requirement 1 P Hp 27 21 17 14 11 8 7 5 4 3 3 2 2 1 0.004 0.008 0.012 0.016 0.020 f in/rev 0.006 0.010 0.014 0.018 Dc in 0 1.496 0 1.378 0 1.260 0 1.142 0 1.024 0 0.906 0 0.787 0 0.709 0 0.630 Feed force Thrust 3625 2878 2284 1813 1439 1142 906 719 571 453 360 286 227 180 0.004 0.008 0.012 0.016 0.020 f in/rev 0.006 0.010 0.014 0.018 Dc in 0 1.496 0 1.378 0 1.260 0 1.142 0 1.024 0 0.906 0 0.787 0 0.709 0 0.630 Torque Mc ft lbs 0.006 0.010 0.014 0.018 The power requirement1 data is based on a cutting speed of 100 m/min. If the cutting speed is doubled, the power requirement also doubles, i.e. the power requirement is directly proportional to the cutting speed. For cast iron with a higher tensile strength, the power and torque required are correspondingly higher. C 212 WALTER Valenite Technical information Drilling