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Extended Two‑Flute & Four‑Flute SDS‑Plus Impact Drill Bit Set
This Extended Two‑Flute & Four‑Flute SDS‑Plus Impact Drill Bit Set is engineered for deep, through‑wall drilling in concrete and masonry. Featuring premium tungsten‑carbide tips, variable flute designs, and both round and square shank options, these bits deliver fast material removal, minimal vibration, and long service life in demanding renovation and construction tasks.
Key Features
1. Tungsten‑Carbide Tip Construction
Each bit is tipped with industrial-grade YG8C tungsten‑carbide for exceptional hardness and wear resistance, enabling sustained performance when drilling reinforced concrete and masonry.
2. Flute Configurations
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Two‑Flute (Round Shank): Optimized for face‑hammer drills, the 2‑cutter design channels dust efficiently and reduces bit wander for accurate, chatter‑free holes.
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Four‑Flute (Square Shank): The 4‑cutter cross‑tip geometry enhances stability and accelerates debris ejection, cutting through tough materials with less heat buildup.
3. Shank Variants
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Round Shank (2‑Flute): Fits standard SDS‑Plus chucks, offering quick bit changes and a secure grip in most rotary hammers.
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Square Shank (4‑Flute): Designed for quick‑change hex chucks and heavy‑duty impact drivers, maximizing torque transmission and minimizing slip under load.
4. Extended Reach
Available in lengths from 160 mm to 400 mm, these bits allow you to bore through thick walls and deep cavities without additional extensions, perfect for installing anchors, conduit, and through‑bolts.
5. Multi‑Material Capability
Ideal for drilling concrete, brick, block, gypsum board, natural stone, and tile, this versatile set meets the needs of electricians, plumbers, and general contractors.
6. Heavy‑Duty Durability
Heat‑treated steel bodies and robust flute geometry resist bending and fracture, ensuring reliable operation under high‑impact hammer action.
Specifications
| Feature | Two‑Flute Round Shank | Four‑Flute Square Shank |
|---|---|---|
| Tip Material | Tungsten‑Carbide (YG8C) | Tungsten‑Carbide (YG8C) |
| Flutes | 2 (Spiral) | 4 (Cross‑Tip) |
| Shank | SDS‑Plus Round | 10 mm Hex / 12 mm Square |
| Available Diameters | 10 mm, 12 mm, 14 mm, 16 mm, 18 mm, 20 mm | 12 mm, 14 mm, 16 mm, 18 mm, 20 mm |
| Available Lengths | 160 mm, 200 mm, 250 mm, 300 mm | 160 mm, 200 mm, 300 mm, 400 mm |
| Max RPM | 2,500 – 3,000 (Hammer Mode) | 2,500 – 3,000 (Hammer Mode) |
| Packaging | Individual Blister; Bulk Sets | Individual Blister; Bulk Sets |
Applications
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Wall Penetration & Anchoring: Drill precise holes for heavy‑duty anchors and through‑bolts in thick concrete walls.
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Conduit & Plumbing Pass‑Throughs: Create deep feed‑throughs for electrical conduit and plumbing installations.
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Renovation & Demolition Prep: Rapidly remove material in renovation tasks such as tile removal and plaster bust‑out.
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General Masonry Work: Suitable for contractors working with brick, block, stone, and reinforced concrete.
Usage & Maintenance
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Select the Correct Bit: Use the two‑flute version for cleaner walls and the four‑flute for faster debris removal in heavy‑duty jobs.
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Drill Speed & Pressure: Start at low speed to locate center, then switch to hammer mode at recommended RPM and apply steady, moderate pressure.
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Clear Debris Often: Retract the bit periodically to eject chips and prevent binding, especially in deep holes.
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Inspect & Store Properly: After use, clean bits to remove dust, inspect carbide tips for damage, and store in a dry case to maintain performance.
Harness the combined strength of two‑flute and four‑flute designs, tungsten‑carbide tips, and extended lengths to tackle any through‑wall drilling challenge with confidence and efficiency.
