22 0418 22 0468 1513 Regrinding information for Karnasch solid carbide drills 130° point angle Angle of point to longitudinal axis RQ=residual shear 0.05 x D 10° = 1. clearance angle 25° = 2. clearance angle 4-surface relief Sharpening disc 25° 10° RQ 47° 15° 32°+3° 25° 0.01 + 0.02 main cutting edge fillet 140° point angle 4-surface relief 0.05 x D 8°±1° 25° Sharpening disc RQ RQ=residual shear 15° 5% from nominal diameter main cutting edge fillet Angle of point to longitudinal axis 33°+2° 90°+4° +1° xo shear Sharpening disc RQ 47° 15° 25° 0.01 + 0.02 main cutting edge fillet 140° point angle 4-surface relief 0.05 x D 8°±1° 25° Sharpening disc RQ RQ=residual shear 15° 5% from nominal diameter main cutting edge fillet Angle of point to longitudinal axis 33°+2° 90°+4° +1° xo 130° point angle Angle of point to longitudinal axis RQ=residual shear 0.05 x D 10° = 1. clearance angle 25° = 2. clearance angle 4-surface relief Sharpening disc 25° 10° RQ 47° 15° 32°+3° 25° 0.01 + 0.02 main cutting edge fillet RQ=residual shear 0.05 x D earance angle earance angle 4-surface relief Sharpening disc RQ 47° 15° 25° 0.01 + 0.02 main cutting edge fillet ar Sharpening disc 47° 15° 25° 0.01 + 0.02 main cutting edge fillet 140° point angle 4-surface relief 0.05 x D 8°±1° 25° Sharpening disc RQ RQ=residual shear 15° 5% from nominal diameter main cutting edge fillet Angle of point to longitudinal axis 33°+2° 90°+4° +1° xo 140° point angle 4-surface relief 0.05 x D 8°±1° 25° Sharpening disc RQ RQ=residual shear 15° 5% from nominal diameter main cutting edge fillet Angle of point to longitudinal axis 33°+2° 90°+4° +1° xo 140° point angle 4-surface relief 0.05 x D 8°±1° 25° Sharpening disc RQ RQ=residual shear 15° 5% from nominal diameter main cutting edge fillet Angle of point to longitudinal axis 33°+2° 90°+4° +1° xo CAST 1 Cutting edge 2 Sharpening disc 3 Angle of point to longitudinal axis 4 RQ = residual shear 3.0 - 8.0 0.20 8.0 - 12.0 0.25 12.0 - 14.0 0.30 14.0 - 16.0 0.35 16.0 - 20.0 0.40 RQ HHC 3.0 - 6.0 0.5 6.0 - 10.0 0.8 10.0 - 12.0 1.0 12.0 - 16.0 1.2 16.0 - 20.0 1.4 R 5 main cutting edge fillet 1 Cutting edge 2 Sharpening disc 3 Angle of point to longitudinal axis 3.0 - 8.0 0.20 8.0 - 12.0 0.25 12.0 - 14.0 0.30 14.0 - 16.0 0.35 16.0 - 20.0 0.40 RQ 5 main cutting edge fillet 4 RQ = residual shear 11 Index 10 9 OIL 8 7 6 5 4 3 2 1
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