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Materials & Applications
Compatibility
Materials & Applications
Recommended use cases for this product across common industrial materials and jobsite applications.
Mild steel, Aluminum, Brass, Copper, Plastics, Non-ferrous metals
Deburring drilled holes
Removing sharp edges
Light countersinking
Finishing and cleanup operations
Fabrication and maintenance work
Product details
Technical Description
Essential product information, specifications, and recommended use before ordering.
Champion DBK26A 90° HSS Double-Ended Zero-Flute Countersink | 5/16" to 25/32" | 1/4" Shank — Weldon-Style Deburring Countersink
The DBK26A is a Champion 90° HSS double-ended zero-flute countersink sized for flat-head screws from 5/16" to 25/32". Its single cutting edge is designed for fast stock removal and a smooth, chatter-resistant finish when deburring drilled holes, breaking sharp edges or preparing seats for flat-head fasteners.
This exact DBK configuration has a 1/4" shank and 2-19/32" overall length, with a 13/16" body diameter. The double-ended format provides two usable cutting ends in one tool, while the zero-flute Weldon-style geometry supports controlled cutting in production, fabrication and maintenance work.
Technical Specifications
| Manufacturer part number | DBK26A |
|---|---|
| Exact screw range | 5/16" to 25/32" flat-head screws |
| Included angle | 90° |
| Tool style | Double-ended Weldon-style pilotless zero-flute countersink |
| Body diameter | 13/16" |
| Shank diameter | 1/4" |
| Overall tool length | 2-19/32" |
| Material | High-speed steel (HSS) |
| Source variant configuration | For screws 5/16" to 25/32" | Shank 1/4" |
Applications
Use this Champion DBK26A for chatter-free countersinking, deburring drilled holes, edge breaking and light countersinking in metal, aluminum, brass, copper, plastics and wood. It is suited to portable power drills and drill presses, including glass and door-frame installation work.
Consistent Countersinking
Match the cutter to the exact 5/16" to 25/32" screw range, secure the workpiece and establish the desired depth before cutting. Moderate RPM, light pressure and proper alignment help produce a clean 90° chamfer and extend tool life.
Cutting tools may shatter if misused. Wear appropriate PPE and follow the machine and tool manufacturer's instructions.
Most Interesting Product Feature
Product highlight
Most Interesting Product Feature
- Dual-End Zero Flute Design — Provides two usable cutting edges in one tool while delivering chatter-free performance, maximizing tool life and reducing replacement frequency in production environments.
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