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Best Core Drill Bits for Drilling Concrete (2026)

We compared diamond core construction, diameter options, wet/dry compatibility, user ratings, and overall value to select versatile concrete-drilling bits

Top Picks

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    Diamond Core Drill Bits 1-3/8 in for hard stone

    Diamond Core Drill Bits 1-3/8 in for hard stone

    SHDIATOOL • ★ 4.0/5 • Budget

    Laser welded diamond core bits for dry or wet drilling on granite, marble, and concrete. Notable for easy handling and solid build; users report good speed and value, with mixed durability feedback

    • dry or wet drilling capability
    • 35mm diameter core bit
    • fast cutting with diamond segments
    Check current price on Amazon →
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    SHDIATOOL Diamond Core Drill Bits 45mm (1-3/4") for hard stone

    SHDIATOOL Diamond Core Drill Bits 45mm (1-3/4") for hard stone

    SHDIATOOL • ★ 4.0/5 • Mid-Range

    Diamond core drill bits for dry or wet drilling on hard stone, granite, concrete and marble. 45mm diameter with 100mm length; dry drilling endorses longer segment life when used wet. Customers note easy cutting and good build quality, with some durability variability

    • laser welded diamond segments
    • 45mm diameter suitability for hard stone
    • dry or wet drilling versatility
    Check current price on Amazon →

Buying Guide

Choose the right diameter

Match the core bit diameter to the hole you need—options here include roughly 1" (25mm) up to 45mm; measuring the fixture or pipe first avoids oversizing

Diamond matrix and welding

Look for laser-welded diamond segments and a dense diamond matrix for longer life and consistent cutting through concrete and aggregate

Wet vs. dry drilling

Select wet-capable bits for cooler cuts and less dust on extended jobs, while dry-rated designs offer convenience for quick, shallow holes but may wear faster

Compatibility with your tool

Check arbor, shank type, and whether the bit is intended for angle grinders or core drills to ensure safe, secure mounting—some listed bits are marketed as angle-grinder accessories

Balance performance and value

Evaluate user ratings and price bands—these picks represent midrange, value-oriented diamond core bits that balance durability with affordable pricing