Bosch SpeedX 1/2 in. X 21 in. L Carbide Tipped SDS-max Rotary Hammer Bit SDS-Max Shank

Meet the Bosch SpeedX 1/2 in. x 21 in. L Carbide Tipped SDS-Max Rotary Hammer Bit. Built for demanding concrete and masonry work, this bit pairs a robust carbide tip with an optimized flute design to deliver faster material removal and longer life in tough drill scenarios. With a 21-inch overall length and a 16-inch flute, it’s engineered for deep holes and hard-to-reach applications with an SDS-Max rotary hammer.

Key specifications at a glance

• Diameter: 1/2 inch
• Overall length: 21 inches
• Flute length: 16 inches
• Shank type: SDS-Max
• Tip: Carbide tipped for durability in hard materials
• Packaging: Carded, 1 piece per package

What sets SpeedX apart

• Carbide-tipped for longevity — carbide inserts resist wear and wear-induced chatter, helping you drill cleaner holes longer in reinforced concrete and dense masonry.
• SpeedX geometry — engineered for faster chip removal and efficient cutting, so you can complete tough holes with less downtime.
• Long reach with practical depth — 21 inches total length and a 16-inch flute facilitate deep wells and holes in walls, slabs, and foundations where shorter bits fall short.
• SDS-Max compatibility — designed for quick, secure bit changes with SDS-Max rotary hammers, reducing setup time on the jobsite.
• Reliable packaging — carded packaging ensures the bit stays protected and easy to store until you’re ready to use it.

Ideal use cases

• Anchoring and fastener holes in poured concrete and masonry walls where hole depth requires extended reach.
• Overhead or vertical drilling tasks, such as ceiling installations, electrical conduits, and HVAC runs, where a longer bit improves efficiency.
• Heavy-duty drilling in hard substrates where a carbide tip delivers superior wear resistance and hole quality.

Practical tips for best results

• Pair with a compatible SDS-Max rotary hammer and use appropriate drilling speeds to maximize bit life and cut rate.
• Use steady, controlled feeds and avoid forcing the bit; let the carbide tip and flute geometry do the work.
• Allow for adequate cooling and remove debris periodically to maintain cutting efficiency and prevent overheating.

With the Bosch SpeedX 1/2 in. x 21 in. SDS-Max Rotary Hammer Bit, you’re choosing a tool designed to tackle demanding concrete drilling tasks with precision, speed, and longevity. Perfect for professional installers, contractors, and serious DIYers who consistently work with hard materials and need reliable performance over long, deep holes.