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What is a Subland Drill?
A Subland Drill (2-2) is basically two drills of different diameters combined into one tool, retaining the individual characteristics and proper geometry for each diameter. The independent flutes and margins of a Subland Drill ensure that size and concentricity between diameters are maintained throughout the life of the tool and are not affected by re-sharpening the point or step angles.
The Subland Drill (2-2) eliminates secondary operations by drilling multi-diameter holes in one production pass. In certain applications particularly holes in steel or cast iron, the Subland Drill (2-2) provides superior tool life compared to that of a basic step drill. When drill bushings are used "Double Margins" can be supplied for greater stability. The additional margins will give maximum support and guidance to provide a more accurate size and hole location. RTS Cutting, a leading subland step drills manufacturer, is able to answer all of your questions. Call us now for a quote!
Subland Drills are not practical when the small diameter is less than 50% of the large diameter. Depth of the hole should not exceed 4 times the small diameter, but greater hole depth can be achieved by withdrawing the tool or "pecking" to clear chips.
As a leading Subland Step Drills Manufacturer, RTS Cutting is able to answer all your questions and needs. Learn more about our various types of custom subland drills:
- Custom Subland 2-2 Drill Builder
- Custom Subland 2-2-2 Drill Builder
- Custom Subland Core 3-3 Drill Builder
Contact us today to learn more about how our team can assist you.