Bosch Rotary Hammer Drill Bit SDS Plus Shank Bulldog Tough Core Tool (Four Cutter Solid Carbide Head Reinforced Concrete Rebar Anchor Boring)

Bosch SDS-Plus® Bulldog™ Tough Four-Cutter Carbide Rotary Hammer Drill Bits

The Bosch SDS-plus® Bulldog™ Tough rotary hammer drill bits bore concentric anchor holes through steel rebar-reinforced concrete, structural CMU block, brick masonry, and dense aggregate stone. Engineered with a proprietary solid tungsten carbide four-cutter crown ground to a 120-degree cutting angle, each bit pulverizes embedded steel rebar on direct contact without binding, tip fracturing, or aggressive torsional kickback. Outfitted with an active four-flute spiral extraction matrix that evacuates fine silica dust quickly to reduce operating temperatures, an anti-walk centering point that guarantees instant biting accuracy on slick vertical substrates, and precision ANSI-compliant boring tolerances, this versatile lineup equips commercial electrical crews, HVAC installers, and structural forming contractors with double the operational service life across all corded and cordless SDS-plus rotary hammer drills.

Best Used For:

• Commercial Structural Concrete Anchoring: Boring round, code-compliant holes for mechanical wedge anchors, sleeve studs, and drop-in expansion shields in poured foundations.
• Rebar-Embedded Concrete Penetration: Drilling continuously through tilt-up panels, bridge footings, and structural columns without head seizure when striking rebar cages.
• Mechanical and Electrical Through-Wall Rough-Ins: Penetrating dense concrete masonry units, hard river rock slabs, and structural brick walls for conduit and piping mounts.

Key Performance & Safety Features

• Solid Four-Cutter Carbide Crown: Full cross-head cutter design provides four distinct cutting paths to shatter embedded rebar and hard aggregates without tip blowout.
• 2X Operational Service Life: In-house formulated tungsten carbide matrix resists abrasive wear and thermal fatigue, outlasting standard two-cutter bits two to one.
• Anti-Walk Centering Tip: Precision-milled 120-degree starter point bites immediately into concrete surfaces to eliminate bit wandering and ensure concentric anchor holes.
• Deep Four-Flute Spiral Extraction: Four independent evacuation channels draw hot stone dust away from the tip, minimizing thermal stress and maximizing drilling speeds.
• Thermal-Resistant Alloy Body: Heat-treated high-stress tool steel core absorbs continuous percussive hammer blows without bending or fatigue fractures.
• Universal SDS-Plus Fitment: Standardized slotted drive shank locks tightly into all commercial SDS-plus rotary hammer chucks for zero-slip torque transmission.

What's Included

• (1) Bosch SDS-Plus® Bulldog™ Tough Four-Cutter Rotary Hammer Drill Bit (Selected Size)

Technical Specifications

Pro-Tip: Never push or force the hammer drill when encountering embedded steel rebar; maintain firm, steady in-line pressure to let the four carbide cutter faces pulverize the rebar, allowing the four spiral flutes to clear the steel shavings without thermal binding.