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Extra-Long Twist Drill Bit 5.5mm | HSS Material | Patent-Pending Tip Geometry | 3-Flat Shank Design | by Wurth
The Extra-Long Twist Drill Bit 5.5mm is engineered for precision drilling in steel, wood, and plastics. With a patent-pending stepped drill bit tip geometry, it offers unrivaled precision and a longer service life. Designed for use with standard drills and cordless screwdrivers, this bit eliminates the need for pre-drilling, ensuring clean, burr-free holes with less vibration and torque required.
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Product Name/Title: Extra-Long Twist Drill Bit 5.5mm | HSS Material | Patent-Pending Tip Geometry | 3-Flat Shank Design | by Wurth
Brand: Wurth
SKU: 624960550
Alternatively Known As: Extra-long twist drill bit, SMART STEP drill bit, stepped drill bit, HSS drill bit, precision drill bit
Technical Specifications
- Diameter: 5.5 mm
- Length (l1): 260 mm
- Chip flute length (l2): 180 mm
- Drill tip length (l3): 3.8 mm
- Shank diameter: 5.5 mm
- Shank style: 3-face shank
- Material: High-Speed Steel (HSS)
- Surface: Multiple refined
- Suitable for tensile strength up to 1000 N/mm²
- Suitable for machine types: Drill, Cordless screwdrivers, Pedestal drilling machine
- Quality: ZEBRA-Premium
- Standard / drilling depth: DIN 1869 / 25xD
- Design: Overlong
- Self-centring: Yes
- Service life rating: 3 of 4 points
- Drilling speed rating: 4 of 4 points
- Bore hole quality rating: 4 of 4 points
- Versatility rating: 3 of 4 points
- Drilling behaviour rating: 4 of 4 points
- Suitable for drill rating: 4 of 4 points
- Suitable for cordless drills rating: 4 of 4 points
- Suitable for upright drilling machine rating: 4 of 4 points
- Dimensions (H x L x W): 260mm x 260mm x 5.5mm
- Weight: 0.1 kg
Key Features
- Extremely unequal pitch (EU+) for up to 50% longer service life and 15% faster drilling progress
- Patent-pending stepped drill bit tip geometry for unrivalled precision and service life
- 3-flat shank from diameter 4 mm prevents spinning in the drill chuck and ensures optimal power transmission
- Eliminates pre-drilling despite extra-long design with precise spot drilling and burr-free hole exit
- Significantly more comfortable drilling with less vibration and up to 60% less torque required
- Available exclusively from Wurth with innovative point geometry for optimal chip removal
Professional Installation Requirements
- No professional installation required; suitable for use with standard drilling machines and cordless screwdrivers by trained operators.
Applications
- Suitable for drilling steel, cast iron, non-ferrous metals, wood, hardwood, plastics, and acrylic materials
- Ideal for use with drills, cordless screwdrivers, and pedestal drilling machines
- Perfect for precise, circular holes without tearing or splintering in various materials
Standards & Compliance
- Complies with AS/NZS 3000 – Wiring Rules (Electrical Installation)
Environmental Benefits
- Product packaging made from 100% PCR recycled plastic and is 100% recyclable
- Up to 20% lower energy consumption during drilling due to efficient design
Warranty Information
Standard manufacturer warranty applies; please refer to Wurth's warranty policy for details.
Available Now
The Wurth SMART STEP Extra-Long Twist Drill Bit 5.5mm is available for immediate purchase, ideal for precision drilling in metal, wood, and plastics.
