Heavy-Duty 1/4" Hex Shank Brad Point Drill Bits: Rapid-Flow Wood Series
1. Design Concept: High-Torque Performance
While standard wood bits are designed for stationary drill presses, our Rapid-Flow Hex Shank Series is built for the mobility of the modern job site. Engineered to handle the high-torque impacts of cordless drivers, these bits feature a reinforced core and a specialized Brad Point geometry that bites into the material instantly.
This series bridges the gap between precision cabinetry and high-speed construction, offering a "Walk-Free" start and a "Burn-Free" finish in both metric and imperial industrial standards.
2. Technical Specification Matrix (Metric & Imperial)
Precision-manufactured from vacuum-quenched alloy steel. The dual-marking system ensures global compatibility.
| Diameter (Metric) | Diameter (Fractional) | Total Length (mm/inch) | Flute Length (mm/inch) | Shank Type |
| 3.0 mm | 1/8" | 62 mm / 2.44" | 33 mm / 1.30" | 1/4" Hex |
| 5.0 mm | 3/16" | 88 mm / 3.46" | 52 mm / 2.05" | 1/4" Hex |
| 6.35 mm | 1/4" | 98 mm / 3.86" | 60 mm / 2.36" | 1/4" Hex |
| 8.0 mm | 5/16" | 115 mm / 4.53" | 75 mm / 2.95" | 1/4" Hex |
| 9.5 mm | 3/8" | 125 mm / 4.92" | 82 mm / 3.23" | 1/4" Hex |
| 11.0 mm | 7/16" | 135 mm / 5.31" | 90 mm / 3.54" | 1/4" Hex |
| 12.7 mm | 1/2" | 145 mm / 5.71" | 98 mm / 3.86" | 1/4" Hex |
3. Industrial Features & Core Advantages
High-Impact Quick-Change Shank
The universal 6.35mm (1/4") Hex Shank features a specialized power-groove, ensuring a locked-in fit for all quick-release impact drivers. This eliminates the common issue of the bit slipping or being left behind in deep wood bores.
Double-Spur "Shear-Cut" Technology
Our double spurs act like circular knives, pre-cutting the wood fibers before the main lifting edge removes the chip.
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Clean-Exit Guarantee: Drastically reduces "blow-out" on the backside of the wood.
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Veneer Safe: Safe for use on expensive laminated surfaces and exotic hardwoods without surface tearing.
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Progressive Deep-Spiral Flutes
The flutes are wider and more polished than standard bits. This Progressive Geometry creates a low-friction path for wood waste, allowing for continuous drilling without having to pull the bit out to clear chips.
Reinforced Steel Integrity
Forged from premium 40Cr Alloy Steel (or Industrial HSS upon request), these bits undergo a proprietary tempering process that increases torsional strength by 25%, making them ideal for high-impact use.
4. Multi-Material Application Guide
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Softwood & Hardwood: Fast, clean boring for structural bolts and dowels.
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Engineered Wood: Superior performance in MDF, OSB, and Plywood where traditional bits cause delamination.
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Specialty Materials: Highly effective for clean holes in Drywall, PVC, and Acrylic sheets without melting or cracking the material.
5. Global Logistics & OEM
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Retail Ready: Individual premium hanging cards or 7-13 piece sets in high-impact ABS cases.
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Logistics: Standard export palletization with moisture-proof protection for European and Middle Eastern sea freight.
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OEM Customization: Laser Marking of dual-unit sizes (Metric + Imperial) and custom brand logos directly on the shank.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.