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Drill America carbide-tipped masonry bit 24 inch black oxide finish round shank spiral flute

Drill America

Drill America DAM24X1/4 Carbide-Tipped Masonry Drill Bit 24" 118°

SKU CH-JR7H-ZSDFN

24" carbide-tipped masonry bit with 1/4" round shank and 118° point drills brick, concrete and sandstone

  • Product typeDrill Accessories
  • Carbide tips resist wear in hard masonry
  • 24 inch length reaches deep anchor holes
  • 118 degree point centres quickly in brick and concrete
  • Wide spiral flutes clear dust fast for faster drilling
  • Black oxide finish protects steel body from corrosion

Masonry drill bit for brick and concrete

The Drill America DAM24X1/4 is a carbide-tipped masonry drill bit built for portable electric drills. It targets installers and tradespeople who need deep holes in brick, concrete or sandstone for anchor screws, expansion shields or toggle bolts. The 24 inch overall length reaches through thick walls or layered substrates. The black oxide finish adds corrosion resistance on the job site.

Dust removal and reduced binding

Wide spiral flutes clear debris quickly in softer masonry so the bit runs cooler and stays on centre. The carbide tip is brazed to a tough steel body and ground to an 118 degree conventional point for reliable starting. Because the tip diameter exceeds the nominal size, holes provide clearance for hardware without binding during insertion.

Sustained drilling in abrasive materials

Carbide construction resists wear during long runs in abrasive aggregate, keeping hole diameter consistent from start to finish. The round shank transmits torque without slipping in standard drill chucks. California Proposition 65 warnings apply: the product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $7.99
Cheaper than about 91% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameDrill America
Product typeDrill Accessories

Questions about this item

How do I install the 1/4" round shank in my drill and what step do people often get wrong?

Insert the round shank fully into the chuck and tighten all three jaws evenly so the bit runs true; the common mistake is leaving the shank short or tightening on only two jaws, which causes wobble in the 24" length.

What maintenance or replacement will this masonry bit need later?

The carbide tip cannot be resharpened economically; once the cutting edges dull from brick, concrete or sandstone the bit is replaced.

What limit shows up first under sustained use?

Heat buildup in the 24" steel body softens the braze joint before the carbide wears, so pause to let the bit cool during deep holes.

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