1/4" Hex Shank Brad Point Drill Bit for Impact Drivers | Quick-Change High-Speed Woodworking Bit | Clean-Hole Boring Tool for Hardwood, Softwood & Plywood with Non-Slip Shank
1. Product Concept
The Hex Shank Brad Point Series is designed for high-precision woodworking where accuracy and hole quality are paramount. Combining the "anti-wander" center spur with a modern 1/4" Power Hex Shank, this bit ensures a non-slip grip in impact drivers and quick-change chucks. Whether you are working with metric-standard European cabinetry or imperial-standard American timber, our bits deliver a "Zero-Splinter" finish in hardwoods, softwoods, and composite materials.
2. Technical Specifications & Size Reference (Metric & Imperial)
Our bits are precision-ground to international standards. The table below lists our primary stock range for both metric and imperial markets.
| Metric Diameter (mm) | Imperial Equivalent (Inch) | Total Length (mm/inch) | Flute Length (mm/inch) | Shank Type |
| 3.0 mm | 1/8" | 60 mm / 2.36" | 33 mm / 1.30" | 1/4" Hex |
| 4.0 mm | 5/32" | 75 mm / 2.95" | 43 mm / 1.69" | 1/4" Hex |
| 5.0 mm | 3/16" | 85 mm / 3.35" | 52 mm / 2.05" | 1/4" Hex |
| 6.0 mm | 1/4" (Approx) | 93 mm / 3.66" | 57 mm / 2.24" | 1/4" Hex |
| 8.0 mm | 5/16" | 117 mm / 4.61" | 75 mm / 2.95" | 1/4" Hex |
| 10.0 mm | 3/8" | 120 mm / 4.72" | 80 mm / 3.15" | 1/4" Hex |
| 12.0 mm | 15/32" | 133 mm / 5.24" | 87 mm / 3.43" | 1/4" Hex |
| 13.0 mm | 1/2" | 133 mm / 5.24" | 87 mm / 3.43" | 1/4" Hex |
3. Engineering Excellence & Key Advantages
Precision Brad Point (Center Spur)
The sharp center tip provides immediate positioning without the need for a center punch. It prevents the bit from "walking" even on polished surfaces, ensuring absolute precision for pilot holes and shelf pin drilling.
Double Cutting Spurs & Quad-Flute Geometry
Dual outer spurs shear the wood fibers before the main drill flutes engage. This creates a clean, circular entrance and exit with no splintering—essential for veneered plywood, MDF, and laminated boards.
1/4" (6.35mm) Quick-Change Hex Shank
The universal power hex shank is compatible with all standard impact drivers and quick-release bit holders. This design eliminates chuck slippage and allows for rapid tool transitions on busy job sites.
Industrial High Carbon Steel (HCS)
Vacuum-heat-treated for optimal hardness and torsional flexibility. The polished flutes ensure rapid chip evacuation to prevent friction heat and unsightly burn marks on the wood.
4. Professional Applications
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Fine Cabinetry: Precise boring for adjustable shelf supports and decorative hardware.
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Furniture Construction: Clean through-holes for dowel joints and furniture bolts.
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Renovation: Rapid drilling in studs and joists using cordless impact drivers.
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Composite Materials: Highly effective in PVC, Drywall, and particle board where standard bits cause surface tearing.
5. Packaging & Global Logistics
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B2B Supply: Individual PVC hanging tubes, specialized blister cards, or 8-13 piece professional sets in indexed cases.
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Wholesale: Moisture-proof inner boxes and reinforced export cartons palletized for international sea and rail freight.
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OEM Marking: High-precision Laser Etching for brand logos and dual-unit (Metric/Imperial) size markings directly on the hex shank.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.