Subland Drills
Overview: A Subland Drill (2-2) is two drills of different diameters combined into one tool while retaining the individual characteristics and proper geometry of each. The independent flutes and margins maintain the concentricity between diameters throughout the life of the tool and are not affected by re-sharpening.
It eliminates secondary operations by drilling multi-diameter holes in one production pass. On certain applications particularly while making holes in steel or cast iron, the subland drill gives superior tool life as compared to other basic step drill of the same diameter.
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Features:
- The subland drill eliminates secondary operations by drilling multi-diameter holes in one production pass.
- On certain applications particularly while making holes in steel or cast iron, the subland drill gives superior tool life as compared to other basic step drill of the same diameter.
- When drill bushing is applied and the material is being cut through, with subland drill ‘Double Margins’ can be supplied at no extra cost.
- As a result the additional margins will give maximum support and guidance that will give more accurate size and hole location control.