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Dewalt

4MM X L160 X WL100 - SDS PLUS DRILL BIT (PROFESSIONAL)
Part of DeWalt’s Extreme 2 range, this bit boasts a 100 mm working depth with a 4‑flute spiral design and reinforced core, enhancing dust removal and reducing clogging for consistent drilling speed. The 140° precision carbide tip cuts cleanly and reduces walking. Ideal for anchor, plug, and clearance holes in demanding job sites.
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The DT9503‑QZ is a robust 4 mm diameter, 160 mm total length SDS‑Plus hammer drill bit built for high-performance masonry applications. It features a solid two-cutter carbide head flanked by two additional cutting tips, offering fast, clean drilling in concrete, brick, stone, and block. The reinforced hardened steel body and optimized SDS‑Plus shank ensure maximum strength and efficient impact energy transfer
  • 4 mm diameter × 160 mm total length; 100 mm effective drilling depth
  • Solid 2-cutter carbide head with twin additional tips for fast, efficient cutting
  • 4‑flute spiral with reinforced core—excellent dust ejection
  • 140° carbide tip—quick bite and long life
  • Hardened steel body resists breakage and wear
  • Optimized SDS‑Plus shank for secure grip and power transfer
  • Anchor wear mark indicates when to replace after anchor installation
  • Extreme 2 series – for professional-grade performance
  • Diameter: 4 mm
  • Overall Length: 160 mm
  • Usable Depth: 100 mm
  • Tip Type: 2-cutter carbide with side flanks; 140° angle
  • Flutes: 4‑spiral, optimized for debris removal
  • Core: Reinforced/hardened for impact resistance
  • Shank: SDS‑Plus
  • Series: Extreme 2 – high-speed, long-life masonry drilling
  • Anchor Mark: Yes – for anchor-use monitoring
  • 1 × DT9503‑QZ Extreme 2 SDS‑Plus drill bit (4 × 160 mm)