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HAM 293    Solid carbide twist drill, 12 X D
 
design features:
•  special point ground
•  special chip flute geometry
•  web thickness reinforced
•  30° RH helix
 
Advise for very long drilling tools:
1.) For spot drilling it is recommended to reduce the feed rate to 25-50% of the
machining feed rate.
2.) A pilot drilling is recommended in special cases. (same boring depth diameter,
approx. 1 x D)

Ordering Number    30-1861
  (ALOX SN Coating)
d1 h7 mm d2 h6 mm l1 mm l2 mm l3 mm   d1 h7 mm d2 h6 mm l1 mm l2 mm l3 mm
3.00 6.00 92 54 48   7.50 8.00 146 108 94
3.20 6.00 92 54 48   7.70 8.00 146 108 94
3.30 6.00 92 54 48   7.80 8.00 146 108 94
3.50 6.00 92 54 48   8.00 8.00 146 108 94
3.80 6.00 102 64 58   8.10 10.00 162 120 110
                     
4.00 6.00 102 64 58   8.20 10.00 162 120 110
4.20 6.00 102 64 58   8.30 10.00 162 120 110
4.50 6.00 102 64 58   8.40 10.00 162 120 110
4.80 6.00 116 78 70   8.50 10.00 162 120 110
4.90 6.00 116 78 70   9.00 10.00 162 120 110
                     
5.00 6.00 116 78 70   9.50 10.00 162 120 110
5.50 6.00 116 78 70   9.80 10.00 162 120 110
5.80 6.00 116 78 70   10.00 10.00 162 120 110
6.00 6.00 116 78 70   10.50 12.00 204 156 142
6.30 8.00 146 108 94   11.00 12.00 204 156 142
                     
6.50 8.00 146 108 94   11.20 12.00 204 156 142
6.60 8.00 146 108 94   11.50 12.00 204 156 142
6.80 8.00 146 108 94   11.80 12.00 204 156 142
6.90 8.00 146 108 94   12.00 12.00 204 156 142
7.00 8.00 146 108 94            
We have the right to make technical changes.



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