Is a hammer drill a SDS?
Official Terminology for Hammer Drill Bits
The official technical term for hammer drill bits is:
🔹 “Rotary Impact Drill Bit” (冲击式旋转钻头)
🔹 “SDS Bit” (SDS钻头) – “SDS” stands for “Steck-Dreh-System” (German for “Insert-Twist System”) or alternatively “Slotted Drive System.”
Key Features of Hammer Drill Bits
Hammer drill bits combine rotary drilling + impact hammering, offering:
1️⃣ High Efficiency – Rapid material penetration for faster drilling.
2️⃣ Exceptional Durability – Made of carbide alloys to withstand heat, pressure, and abrasion.
3️⃣ Stable Connection – SDS shank design ensures secure grip and minimizes slippage.
Common Applications
Hammer drill bits are widely used in:
🏗 Construction & Renovation
- Drilling concrete, brick, stone for pipes, wiring, and anchors.
⚙ Metal Fabrication
- Precision drilling in steel plates, beams, and machinery.
🪵 Woodworking
- Heavy-duty drilling in timber, plywood, and engineered wood.
Types of SDS Bits
| Type | Shank Design | Best For |
|---|---|---|
| SDS-Plus | 10mm grooves | Light/medium concrete, brick |
| SDS-Max | 18mm grooves | Heavy demolition, reinforced concrete |
| SDS-Quick | Compact grooves | Small DIY tasks |
Why Use SDS Bits Instead of Regular Bits?
✔ Faster Drilling – Impact mechanism crushes hard materials.
✔ Longer Lifespan – Hardened carbide tips resist wear.
✔ Safer Operation – Locking mechanism prevents bit ejection.
Note: Standard twist drill bits (straight shank) are not suitable for hammer drills due to lack of impact resistance.
Summary
- Official term: Rotary Impact Drill Bit / SDS Bit.
- Best for: Concrete, metal, and wood (with proper bit type).
- Critical feature: SDS shank for secure, high-torque drilling.
For optimal performance, always match the SDS bit type (Plus/Max) to your hammer drill’s chuck system.
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