Bosch Spline SpeedX rotary hammer drill bit showcasing a side profile layout with its industrial ridge spline drive shank, extended deep dual flute geometry for faster dust removal, and a patented four cutter solid tungsten carbide head engineered for heavy duty reinforced concrete and masonry stone penetration isolated horizontally on a white background.
A Bosch Spline SpeedX™ Rotary Hammer Bit, a long, durable metal drill bit designed for high-speed drilling in concrete, masonry, and reinforced materials. The bit features a precision-machined carbide tip with a four-cutter design for efficient drilling and reduced bit jamming. with a spiral flute design
A Bosch Spline SpeedX™ Rotary Hammer Bit, a long, durable metal drill bit designed for high-speed drilling in concrete, masonry, and reinforced materials. The bit features a precision-machined carbide tip with a four-cutter design for efficient drilling and reduced bit jamming. with a spiral flute design
tip
This is a image of a long, metallic gray drill bit or auger, designed for heavy-duty drilling. It features a continuous, prominent spiral flute running along most of its length, ending in a fluted, cylindrical shank on the right and a slightly wider, blunted tip on the far left.
Bosch Spline SpeedX rotary hammer drill bit showcasing a side profile layout with its industrial ridge spline drive shank, extended deep dual flute geometry for faster dust removal, and a patented four cutter solid tungsten carbide head engineered for heavy duty reinforced concrete and masonry stone penetration isolated horizontally on a white background.
A Bosch Spline SpeedX™ Rotary Hammer Bit, a long, durable metal drill bit designed for high-speed drilling in concrete, masonry, and reinforced materials. The bit features a precision-machined carbide tip with a four-cutter design for efficient drilling and reduced bit jamming. with a spiral flute design
A Bosch Spline SpeedX™ Rotary Hammer Bit, a long, durable metal drill bit designed for high-speed drilling in concrete, masonry, and reinforced materials. The bit features a precision-machined carbide tip with a four-cutter design for efficient drilling and reduced bit jamming. with a spiral flute design
tip
This is a close-up, slightly angled shot of a single, long, silver-colored drill bit. The drill bit has a spiraled fluted body with a flatter, smooth shank and a multi-grooved end for a rotary hammer.
This is a close-up image of a metallic, threaded shaft, similar to a bolt or a drill bit. Its surface features distinct, continuous spiral grooves running along its length, creating a textured, ridged appearance.
This is a close-up, eye-level shot of a long, silver-colored drill bit. The drill bit has a helical flute design, tapering slightly from a wider cutting head at the top to a narrower shank at the bottom, and appears to be made of metal.
This is a long, silver-colored drill bit with a wide, spiraling groove that twists up its shaft. The tip is thick and designed for drilling into hard materials like concrete, while the opposite end has a grooved shank to lock into a power drill.
This is a image of a long, metallic gray drill bit or auger, designed for heavy-duty drilling. It features a continuous, prominent spiral flute running along most of its length, ending in a fluted, cylindrical shank on the right and a slightly wider, blunted tip on the far left.
BOSCH

Bosch Spline SpeedX Rotary Hammer Drill Bit For Heavy Duty Reinforced Concrete Masonry Brick Stone Penetration Faster Dust Removal Bits

Only 1 left
SKU: HC4511
$32.15

Size (Diameter x Length) Inches
Description

Bosch Promtional Logo Logout

Puncture Hard Reinforced Concrete and Masonry with Patented Four-Cutter Precision and Speed

Power through the most grueling heavy-duty structural anchoring, rebar-reinforced concrete setups, and deep foundational doweling with the unyielding drilling performance of the Bosch Spline SpeedX™ Rotary Hammer Bit. Explicitly calibrated for professional concrete contractors, structural framing specialists, masonry builders, and commercial MEP installation crews, this premium drilling accessory maximizes borehole efficiency. Standard dual-cutter bits frequently walk off-target, bind up, or suffer tip destruction when colliding with embedded steel rebar mesh. This advanced Bosch engineering solution completely resolves that jobsite bottleneck by integrating a patented four-cutter tungsten-carbide head combined with an active-centering point, ensuring lightning-fast, dead-center accurate drill starts without walking or skipping across dense, uneven stone aggregate.

Uncompromising spatial longevity and optimized debris clearing pathways define the heavy-duty architecture of this high-performance rotary hammer bit. Forged with custom-manufactured carbide and advanced diffusion bonding technology, this bit features specialized inclined side cutters that aggressively shear structural obstructions while maintaining exceptional structural defense against thermal cracking. The large-volume fluting geometry works in perfect harmony with the compact head layout to pull highly abrasive dust and stone bits away from the cutting tip instantly, preventing internal compaction, reducing drag, and minimizing operating temperatures. Built to slide flawlessly into industrial spline-drive power tools, this robust bit transitions your machine's full kinetic impact energy straight down the shaft to significantly reduce jarring operator hand-arm vibration feedback.

Key Features

  • Patented Four-Cutter Geometry: Balanced head layout provides optimal multi-cutter performance and smoother drilling dynamics when striking embedded steel.
  • Premium Tungsten-Carbide Tip: Delivers superior wear resistance and long-life durability in the most punishing structural applications.
  • Active-Centering Point: Offers optimum guidance and immediate traction for quick, pinpoint-accurate starts in concrete and reinforced concrete.
  • Inclined Side Cutters: High-grade carbide teeth configuration enables aggressive drilling speeds through hard stone aggregates and masonry.
  • Large Flute Volume Design: Maximizes dust transport speed and debris clearing capacity to minimize clogging and friction resistance inside deep holes.
  • Advanced Diffusion Bonding: State-of-the-art manufacturing bond fuses the carbide tip permanently to the steel core for incredible impact resilience.

What's Included

  • (1) Bosch Spline SpeedX™ Premium Heavy Duty Rotary Hammer Drill Bit

Specifications

Specification Profile Details / Performance Value
Brand Name Bosch
Product Series Class Spline SpeedX™ Series
Product Accessory Type Rotary Hammer Drill Bit
Drive Shank Interface Type Industrial Spline Drive Configuration
Cutting Tip Material Custom Forged Tungsten-Carbide Matrix
Cutter Head Configuration Patented 4-Cutter Design with Inclined Side Cutters
Core Bonding Technology High-Hardness Diffusion Bonding System
Primary Application Substrates Reinforced Concrete, Masonry, Brick, Cinder Block, and Natural Stone
Power Tool Operating Mode Rotary Hammer Mode Only (Not for Chipping Breakers)
Centering System Profile Integrated Active-Centering Point Geometry
Flute Evacuation Profile Large Volume High-Capacity Deep Dust Transport Channels
Total Individual Piece Count 1 Spline Drive Bit per Retail Package

Pro-Tip: When boring structural anchor holes deep into aged, high-PSI concrete or hard limestone blocks, always allow the hammer mechanism of your spline tool to perform the physical cutting labor instead of forcing your full body weight behind the machine handles. Excessive manual down-force triggers massive thermal friction spikes at the tungsten-carbide junction, which can prematurely dull the active-centering tip. Instead, use a steady, firm forward guide and occasionally lift the bit halfway up the hole canal during the drilling cycle. This rapid motion pumps packed powder out of the high-volume flutes instantly, cooling the cutter head and ensuring optimal performance when drilling consecutive anchoring paths.