Chicago-Latrobe
Chicago-Latrobe 78539 #39 Solid Carbide 140° Straight Flute Drill
A #39 solid-carbide drill with a 140° point and 13/16 in. flute length for precision machining
- #39 wire-gauge carbide drill cuts hard materials cleanly
- 140-degree point angle centres quickly without walking
- 13/16 in. flute length evacuates chips efficiently
- Solid carbide construction resists wear in abrasive alloys
- Bright uncoated finish allows easy re-sharpening
Chicago-Latrobe 78539 #39 Solid Carbide Drill Bit
This straight flute drill bit is designed for precision machining tasks requiring a #39 wire gauge size. It suits machinists and technicians working with hard materials where carbide hardness and wear resistance are essential. The bright uncoated finish provides a clean cutting surface without additional coatings.
140 Degree Four-Facet Point Angle
The 140 degree point angle with four-facet geometry determines how the drill engages the workpiece and controls chip formation. This specific angle is the primary specification that decides whether the bit matches the material hardness and hole quality requirements of the application.
13/16 Inch Flute Length and Bright Finish
The flute length of 13/16 inch defines the maximum effective drilling depth in a single pass. The bright uncoated finish eliminates coating buildup concerns and allows for straightforward resharpening, extending the tool's usable life in high-volume production environments.
Highlights
- #39 wire-gauge carbide drill cuts hard materials cleanly
- 140-degree point angle centres quickly without walking
- 13/16 in. flute length evacuates chips efficiently
- Solid carbide construction resists wear in abrasive alloys
- Bright uncoated finish allows easy re-sharpening
Specifications
| Brand | CHICAGO-LATROBE |
|---|
Questions about this item
What hole size does the #39 drill bit produce in practice?
The #39 bit cuts a hole of 0.0995 inches decimal equivalent, suitable for wire gauge and precision tapping work.
How does the 140-degree point angle affect drilling performance?
The 140-degree four-facet point centres quickly in hard materials and reduces wandering on carbide stock.
What chuck capacity is needed for the 13/16-inch flute length?
A standard 3/8-inch or larger drill chuck accommodates the shank; the 13/16-inch flute clears chips in shallow holes.
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