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5-Piece DeWALT SDS Plus Rock Carbide Tip Hammer Bits Set $16 + Free S&H w/ Prime or $35+
$16
$43
62% off
Amazon
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Amazon [amazon.com] has 5-Piece DeWALT SDS Plus Rock Carbide Tip Hammer Bit Set (DW5470) on sale for $16. Shipping is free w/ Amazon Prime or on orders $35+.
Description:
Description:
- For use with electric or cordless rotary hammers
- For drilling holes in poured concrete and other masonry up to 1/2 in. Diameter
- Used by mechanical contractors for drop-in anchors to hold threaded rod for water and waste lines, cable tray and HVAC ducts
- Used by concrete contractors for spike and nail-in anchors for concrete forms
- Used by glaziers for spike anchors to hold window and door frames
- Increased steel to help prevent breakage
- Rock carbide tip for longer bit life
- Elongated 4 flute helix for faster material removal
- This set includes 3/16-x-6-1/2-inch, 1/4-x-4-inch, 1/4-x-6-inch, 3/8-x-6-inch, and 1/2-x-6-inch bits
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Amazon [amazon.com] has 5-Piece DeWALT SDS Plus Rock Carbide Tip Hammer Bit Set (DW5470) on sale for $16. Shipping is free w/ Amazon Prime or on orders $35+.
Description:
Description:
- For use with electric or cordless rotary hammers
- For drilling holes in poured concrete and other masonry up to 1/2 in. Diameter
- Used by mechanical contractors for drop-in anchors to hold threaded rod for water and waste lines, cable tray and HVAC ducts
- Used by concrete contractors for spike and nail-in anchors for concrete forms
- Used by glaziers for spike anchors to hold window and door frames
- Increased steel to help prevent breakage
- Rock carbide tip for longer bit life
- Elongated 4 flute helix for faster material removal
- This set includes 3/16-x-6-1/2-inch, 1/4-x-4-inch, 1/4-x-6-inch, 3/8-x-6-inch, and 1/2-x-6-inch bits
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10 Comments
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I know there's also expanding rock breaking stuff, saw it on the YouTube. Drill a hole, pour rock expanding stuff in, come back tomorrow.
I know there's also expanding rock breaking stuff, saw it on the YouTube. Drill a hole, pour rock expanding stuff in, come back tomorrow.
Almost seems like you would want to rent (maybe from home depot) an SDS Hammer Drill with a chisel tip to break apart the rocks!
Almost seems like you would want to rent (maybe from home depot) an SDS Hammer Drill with a chisel tip to break apart the rocks!
I know there's also expanding rock breaking stuff, saw it on the YouTube. Drill a hole, pour rock expanding stuff in, come back tomorrow.
You will have more success breaking up the rock if you first dig around them. If they are surrounded by dirt it will lessen the effect of hammering.
You may hit the rock a few times and it appears nothing is happening, but hit it enough and it will split. The question is how much is enough. You will find out when the rock splits.
It doesn't affect my answer but what size is medium? Your idea of medium is different from someone else's. It is more informative to give an estimated measurement as best you can such as 30 inches across.
You will have more success breaking up the rock if you first dig around them. If they are surrounded by dirt it will lessen the effect of hammering.
You may hit the rock a few times and it appears nothing is happening, but hit it enough and it will split. The question is how much is enough. You will find out when the rock splits.
It doesn't affect my answer but what size is medium? Your idea of medium is different from someone else's. It is more informative to give an estimated measurement as best you can such as 30 inches across.
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I know there's also expanding rock breaking stuff, saw it on the YouTube. Drill a hole, pour rock expanding stuff in, come back tomorrow.
I'm with Delta1Seven re: using an SDS (Plus or Max) with a proper bull point chisel. Dipping bits in cool water to keep them cool will extend their life and reduce time between filing them sharp again.
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