What Drill Bit

Concrete anchors

Everything for fastening to concrete, brick and block in one place — the anchor finder, the comparison chart, and a page for every anchor type.

Start here Which anchor? The concrete anchor finder. Tell it your wall and load, and get the right anchor type and its bit rule. Open the anchor finder Reference Concrete anchor comparison chartTapcon, wedge, sleeve and drop-in side by side: strength, walls, removability and the bit rule.

By anchor type

Know the anchor already? Jump straight to its bit rule.

TapconBit is one size under Wedge1:1 · solid concrete only Sleeve1:1 · brick, block, concrete Drop-inBit is oversized · setting tool

Elsewhere on What Drill Bit

What drill bit for concrete?not sure what kind of bit you need?Drill bit won’t go into concrete?why it’s not cuttingHit rebar drilling concrete?move the hole, or cut throughDrywall anchorshollow walls, not masonryWall & masonrythe hubDrill bit size converterfind or convert the bitDrill bit sizesGuides

Concrete-anchor sizing here is standard-convention guidance for DIY light-to-medium work. Always follow the size printed on the anchor packaging. For structural, heavy, seismic, or code-governed work, follow the manufacturer's engineered data and consult a structural engineer.