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Bosch HC4091 Spline Speed-X 1-1/2 in., 18 in., 23 in.
Model#: BSHNHC4091

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Bosch HC4091 Spline Speed-X 1-1/2 in., 18 in., 23 in.

Model#: BSHNHC4091
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The Bosch Speed-X combines the life and durability you expect with an amazingly fast drilling speed. Innovative features combine to make this the perfect bit for both precision anchoring and deep drilling applications.
  • Angled dust channels reduces heat build-up resulting in longer bit life
  • Inclined side cutters for aggressive drilling to achieve the highest drilling speed
  • Long pitch spiral increases speed and reduces vibration
  • Wear mark indentifies when bit has worn to a level that is inappropriate for precision anchoring
  • Centric tip for opitimum guidance when drilling in concrete and reinforced concrete
  • Spline Speed-X 1-1/2 in, 18 in, 23 in. - HC4091


Diameter: 1-1/2 in.
Shipping Weight: 3.95 lbs.
Usable Length: 18 in.


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Displaying question 1
  • Spline Speed-X 1-1/2 in., 18 in., 23 in.


    Shank Size?
    Asked on 1/21/2013 by Mr. Weathers from Pie Town, NM

    1 answer

    • Staff Reviewer


      The shank size is 1-1/2". The overall length is 29" and usable length is 24".

      Answered on 1/29/2013 by Big Ken from Lawrenceville, GA
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