This is a close-up, eye-level shot of a large, robust drill bit, angled upwards from the bottom right towards the top left. The drill bit has a wide, dark gray cylindrical body with horizontal ribs, and a smaller, pointed drill bit protruding from its center top, with a spiraled, dark gray shaft visible at the bottom right.
This is a close-up, eye-level shot of a large, robust drill bit, angled upwards from the bottom right towards the top left. The drill bit has a wide, dark gray cylindrical body with horizontal ribs, and a smaller, pointed drill bit protruding from its center top, with a spiraled, dark gray shaft visible at the bottom right.
This is a close-up, eye-level shot of a large, robust core drill bit, angled slightly to the right, against a plain white background. The bit has a wide, cylindrical body with horizontal grooves and a distinct bronze-colored cutting head featuring multiple sharp, protruding teeth.
This is a close-up image of a gray masonry hole saw. It has a ribbed, cylindrical body with a central pilot bit and carbide teeth along the rim for cutting through hard materials like concrete.
The image shows a large, heavy-duty circular hole saw for masonry, with a light gray, tiered cylindrical body and a bronze-colored cutting edge with teeth. A separate drill bit extends from the center of the cylinder to guide the cut.
This is a vertical, close-up shot of a large, metallic gray core drill bit. It features a wide, ribbed cylindrical head with several silver-colored cutting teeth at the very top, transitioning into a narrower, spiraled shaft at the bottom.
This is a close-up, eye-level shot of a large, robust drill bit, angled upwards from the bottom right towards the top left. The drill bit has a wide, dark gray cylindrical body with horizontal ribs, and a smaller, pointed drill bit protruding from its center top, with a spiraled, dark gray shaft visible at the bottom right.
This is a close-up, angled shot of a large, gray core drill bit. It features a wide, ribbed cylindrical drilling head with prominent copper-colored cutting teeth around its rim and a smaller, pointed drill bit protruding from its center, while a spiraled shaft extends from the bottom right.
This is a close-up, angled shot of a large, gray core drill bit. It features a wide, ribbed cylindrical drilling head with prominent copper-colored cutting teeth around its rim and a smaller, pointed drill bit protruding from its center, while a spiraled shaft extends from the bottom right.
BOSCH

Bosch Rotary Hammer Core Bits SDS Max 2 Piece Cutters (Wave Design Asymmetric Carbide Teeth Centering Pin Concrete Brick Masonry Hole Boring)

In stock
SKU: HC7501
$82.29 USD

Diameter (Inches)
Description

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Bosch SDS-max® / Spline 2-Piece Carbide Rotary Hammer Core Bits

The Bosch SDS-max® 2-piece rotary hammer core bits bore large-diameter conduit pathways, plumbing line sleeves, and mechanical utility penetrations across solid poured concrete, hard stone aggregate, brick facades, and structural masonry block. Engineered with an advanced wave-pattern exterior design, these modular two-piece coring cutters channel kinetic percussive energy directly to the cutting face to deliver up to 40% faster drilling speeds than previous generation core designs. Outfitted with diameter-proportioned asymmetric tungsten carbide teeth that accelerate material breakdown while lowering vibration, an included carbide-tipped centering starter bit that prevents bit wandering on smooth concrete, and modular compatibility with interchangeable SDS-max® and Spline drive shanks, they equip commercial electricians, HVAC mechanics, and mechanical plumbing contractors with versatile high-capacity masonry coring performance.

Best Used For:

  • Commercial Electrical Conduit and Junction Coring: Boring large-diameter through-holes in structural concrete, CMU block, and exterior brick walls for electrical service feeds and junction boxes.
  • Plumbing Drainage and Supply Line Sleeves: Core drilling smooth penetrations through foundation walls and floor slabs for PVC drain lines, cast iron pipes, and copper water lines.
  • HVAC Line Set and Refrigerant Routing: Cutting clean mechanical clearances through concrete envelopes, precast foundation walls, and masonry barriers for ductless split lines and condensate lines.

Key Performance & Safety Features

  • High-Velocity Wave Pattern Body: Mathematically optimized exterior wave profile transfers hammer impact energy smoothly to increase drilling speeds up to 40%.
  • Asymmetric Carbide Teeth: Strategically positioned tungsten carbide teeth crush concrete aggregate aggressively while ensuring smooth, balanced rotational tracking.
  • Carbide-Tipped Centering Pilot Bit: Included centering guide pin locks into the core body to establish precise initial hole alignment without wandering.
  • Modular Two-Piece System: Allows interchangeable core cutter heads to couple with various lengths of SDS-max® and Spline drive shanks, lowering total tool investment.
  • Deep 2-5/8" Core Capacity: Accommodates core cuts up to 2-5/8 inches deep per pass, allowing clean slug extraction for deep wall boring.
  • Universal Drive Shank Compatibility: Interfaces with standard SDS-max® and Spline rotary hammer core shanks for zero-slip torque transmission.

What's Included

  • (1) Bosch 2-Piece Rotary Hammer Core Bit Head in User-Selected Size:
    • HC7501: 1-3/4" Diameter x 2-5/8" Core Depth Rotary Hammer Core Bit Head
    • HC7502: 2" Diameter x 2-5/8" Core Depth Rotary Hammer Core Bit Head
    • HC7503: 2-1/2" Diameter x 2-5/8" Core Depth Rotary Hammer Core Bit Head
    • HC7504: 3" Diameter x 2-5/8" Core Depth Rotary Hammer Core Bit Head
    • HC7505: 3-1/2" Diameter x 2-5/8" Core Depth Rotary Hammer Core Bit Head
    • HC7506: 4" Diameter x 2-5/8" Core Depth Rotary Hammer Core Bit Head
    • HC7507: 5" Diameter x 2-5/8" Core Depth Rotary Hammer Core Bit Head
    • HC7508: 6" Diameter x 2-5/8" Core Depth Rotary Hammer Core Bit Head
  • (1) Bosch Carbide-Tipped Centering Pilot Bit

Technical Specifications

Manufacturer Brand Bosch Power Tools
Product Line Association 2-Piece Rotary Hammer Core Bit Series
Selectable Model Numbers HC7501, HC7502, HC7503, HC7504, HC7505, HC7506, HC7507, HC7508
Available Diameter Range 1.750 in. to 6.000 in. (1-3/4", 2", 2-1/2", 3", 3-1/2", 4", 5", 6")
Maximum Usable Core Depth 2.625 Inches (2-5/8 in. Core Depth per Pass)
Tool Shank Compatibility Interchangeable SDS-max® and Spline Core Bit Shanks
Cutting Tooth Metallurgy Industrial Sintered Tungsten Carbide Teeth
Cutter Tooth Configuration Asymmetric Diameter-Matched Tooth Geometry
Core Body Architecture Optimized Wave Design Power Transfer Profile
Centering Guide Bit Included Carbide-Tipped Starter Pilot Pin
Drilling Velocity Rating Up to 40% Faster Drilling vs Conventional Core Bits
Operational Drill Mode Rotary Hammer Action Mode (Rotation + Percussion)
Measurement Standard Fractional Imperial (SAE) Dimensions
Suitable for material type Poured Concrete, Brick Facings, CMU Block, & Stone Aggregate

Pro-Tip: Use the included carbide centering pilot bit to establish an initial 1/4-inch deep circular groove in the concrete; once the core teeth are seated firmly in the groove, remove the pilot pin to allow the core barrel to drill at maximum speed without center drag.