INDUSTRIAL

Subland Drill (2-2)

Available in:
High Speed Steel, Carbide Tipped, Solid Carbide.

Description
A Subland Drill (2-2) is basically two drills of different diameters combined into one tool but retaining the individual characteristics and proper geometry of each. The independent flutes and margins of a Subland Drill ensure that size and concentricity between diameters is maintained throughout the life of the tool and are never effected by resharpening the point or step angles.

Applications
The Subland Drill (2-2) eliminates secondary operations by drilling multi-diameter holes in one production pass.On 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 of the same diameters. When drill bushings are used and subject to material being cut, 'Double Margins' can be supplied at no extra cost. The additional margins will give maximum support and guidance to provide more accurate size and hole location control.

Limitations
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 to clear chips.

INDUSTRIAL