2-5/8 inch bit. This is a close-up, eye-level shot of a large, gray core drill bit, angled slightly to the right against a plain white background. The bit features a wide, cylindrical cutting head with horizontal grooves and sharp teeth, tapering down to a narrower, smooth shaft with a black collar before ending in a rectangular attachment point.
3-1/4 inch bit. This is a close-up, eye-level shot of a large, gray core drill bit, angled slightly to the right against a plain white background. The bit features a wide, cylindrical cutting head with horizontal grooves and sharp teeth, which tapers down to a narrower, smooth shaft with a black collar and a rectangular attachment point at the end.
2-5/8 inch bit. This is a close-up, eye-level shot of a large, gray core drill bit, angled slightly to the right against a plain white background. The bit features a wide, cylindrical cutting head with horizontal grooves and sharp teeth, tapering down to a narrower, smooth shaft with a black collar before ending in a rectangular attachment point.
3-1/4 inch bit. This is a close-up, eye-level shot of a large, gray core drill bit, angled slightly to the right against a plain white background. The bit features a wide, cylindrical cutting head with horizontal grooves and sharp teeth, which tapers down to a narrower, smooth shaft with a black collar and a rectangular attachment point at the end.
2 inch bit. This is a close-up, eye-level shot of a large, gray core drill bit, angled slightly to the right and positioned against a plain white background. The bit has a wide, cylindrical cutting head with horizontal grooves and sharp teeth, which then narrows to a smooth shaft with a black collar before ending in a rectangular attachment point.
3-9/16 inch bit. This is a close-up, eye-level shot of a large, gray core drill bit, angled slightly to the right against a plain white background. The bit features a wide, cylindrical cutting head with horizontal grooves and sharp teeth, which tapers down to a narrower, smooth shaft with a black collar before ending in a rectangular attachment point.
4 inch bit. This is a close-up, eye-level shot of a large, gray core drill bit, angled slightly to the right and positioned against a plain white background. The bit has a wide, cylindrical cutting head with horizontal grooves and sharp teeth, which then narrows to a smooth shaft with a black collar before ending in a rectangular attachment point.
Diablo SDS Max carbide tipped one-piece core bit designed to bore large diameter holes quickly through concrete, brick, and stone masonry.
DIABLO

Diablo Core Bit DMAMXCC5030 SDS Max (Carbide Tipped One Piece Masonry Drill Spiral Flute Concrete Brick Block Stone Core Boring Hole Saw)

In stock
SKU: DMAMXCC5020
$109.99 USD

Diameter
Description

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Diablo DMAMXCC5030 SDS Max One-Piece Carbide Tipped Core Bit

The Diablo DMAMXCC5030 SDS Max One-Piece Carbide Tipped Core Bit is an industrial masonry core saw engineered for boring large-diameter utility pass-through holes in cured concrete, aggregate block, clay brick, and natural stone. Built as a solid integrated single-piece shaft and core cup to absorb high-joule rotary hammer impact forces without fracturing, this heavy-duty core bit features an aggressive Peak Point pilot tip to eliminate surface walking during initial engagement. Outfitted with heat-resistant offset carbide teeth and high-capacity continuous spiral dust extraction flutes, this tool optimizes hole-drilling speed for electrical conduit, HVAC refrigerant lines, and plumbing drain installations using SDS Max rotary hammers.

Best Used For:

  • Electrical Conduit Wall & Floor Penetration: Boring clean, wide-diameter passage holes through poured concrete foundation walls and brick partitions for electrical service conduit.
  • HVAC Refrigerant & Line Set Routing: Core-drilling smooth utility openings through exterior masonry block walls for ductless mini-split line sets and drain piping.
  • Plumbing Supply & Waste Pipe Installation: Sinking precise core holes into concrete slabs and stone foundations to run soil stacks and main water supply lines.

Key Performance & Safety Features

  • Heavy-Duty One-Piece Core Design: Integrated shank and cup geometry eliminates joint flex to prevent structural core bit breakage under high impact loads.
  • Heat-Resistant Offset Carbide Teeth: Premium multi-tooth carbide matrix maintains razor-sharp cutting edges despite extreme operating friction and thermal spikes.
  • Non-Slip Peak Point Pilot Tip: Centered lead pilot bit bites instantly into masonry surfaces to prevent bit wandering and ensure pinpoint layout accuracy.
  • High-Velocity Helical Spiral Flutes: Deep continuous external flutes rapidly evacuate pulverized masonry dust out of the borehole to reduce drag and cutter heat.
  • SDS Max Industrial Shank Fitting: Fully standardized SDS Max drive shank provides positive, slip-free torque transfer inside heavy rotary hammers.
  • Optimized Cordless Battery Runtime: Reduced-friction tooth geometry minimizes motor drag to increase holes drilled per charge on high-output battery tools.

What's Included

  • (1) Diablo DMAMXCC5030 One-Piece SDS Max Carbide Tipped Core Bit Assembly

Technical Specifications

Brand / Manufacturer Diablo Tools
Model / Part Number DMAMXCC5030
Product Line Family SDS Max One-Piece Concrete Core Bits
Drive Shank Fitting Type SDS Max (Heavy Industrial Drive Platform)
Bit Assembly Engineering Solid Integrated One-Piece Shaft and Cup
Cutting Tooth Matrix Material Industrial Heat-Resistant Tipped Carbide
Pilot Center Locator Style Peak Point Non-Slip Tip Design
Dust Extraction Geometry Continuous High-Capacity External Spiral Flutes
Primary Mode Compatibility Rotary Hammer Action Mode Only
Material Cutting Capabilities Cured Concrete, Masonry Blocks, Clay Brick, and Aggregate Stone
Power Machine Platforms Heavy-Duty Corded or Cordless SDS Max Rotary Hammers
Pro-Tip: Run your SDS Max rotary hammer at medium speed in hammer mode when starting the core bit; allowing the Peak Point pilot tip to establish a 1/4-inch deep groove before applying full forward pressure prevents carbide tooth chipping on dense concrete aggregate.