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Irwin 61120 Masonry Bit 5/16×4″

(4 customer reviews)

  • 5/16″ Diameter x 4″O.A Length
  • Used for rotary drilling in concrete, brick, and masonry
  • Carbide bit tip for long life
  • Fast spiral, double flutes quickly clear material from hole
  • Zinc finish

Rotary percussion bits made of chrome vanadium shaft through hardened to 50-53HrC. Shot-peened, double tempered finish reduces breakage, copper braze material gives high heat resistance and flute geometry removes dust from the hole quicker for fast drilling and long life. Used in applications such as rotary drilling in concrete, brick and masonry.

Country of Origin


Cutting Diam

5/16 in




6 3/4 in

Overall Length

4 in

4 reviews for Irwin 61120 Masonry Bit 5/16×4″

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