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DeWALT DW5578 Heavy Duty 1/2-Inch Diamond Drill Bit


Item Number:

Retail Price: $31.99

Our Price: $19.99

In stock



  • Diamond Welded Tip for Greater life and Durability
  • Reverse Spiral Thread Delivers Continuous Water Feed for Longer Life and Increased Speed
  • Core Ejection Slot Removes Plug for Repetitious Hole

What's in The Box

  • (1) DeWALT DW5578 Heavy Duty 1/2-Inch Diamond Drill Bit
  • Owner’s Manual


  • 30 Day Satisfaction Guarantee
Length 1/2"
Pieces Included 1
Customer Reviews

Average! Customer Rating:

(1 Review)

1 Item(s)

per page
June 24th, 2014

Tough enough

I have true cobblestone for my house. A far tougher stone to go through then any clay or concrete bricks. With patience and a good stream of water this diamond drill bit worked well. The only complaint I have it the shank needs to be 2" longer to accommodate a 7/16" studded red head. I had to push the bit out to the end and it kept allowing the bit to slide in to the chuck. Also the shank needs to have a 3 flat sides for a standard chuck to work well.
Jeff M
Omaha, NE

    1 Item(s)

    per page
    • Item Number: DW5578
    • Retail Price: $31.99

      Our Price: $19.99
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