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Your cart is empty.These Hole Saw Arbor Extension are a 12 inch Extension Bit with 7/16" Hex Male to 7/16" Hex Female. Use with 7/16" (11mm) Hex Arbor for Holesaws to Drill Deep Holes in Concrete Brick and Wood Hex Key Included to Lock Arbor in place. Heat Treated 12 inch Hexagonal Extension Fits Any 7/16" Hex Shaft Hole Saw Arbor - Hex Screw Secures and Tightens Hex Shaft of Arbor or 7/16" Drill Attachment. Use Arbor Extension Bit with our Tungsten Carbide Grit Edge Hole saws To Drill Deep Holes in Concrete Masonry And Brick Walls. Note 3/8 inch Hex Also available so make sure you measure and order the correct size for your hole saw Arbor or drill or there will be wobble with an incorrect fitting hex. Plumbers Tools for Drilling Holes for Pipes to go through walls. and Electricians Tools for Drilling Holes through walls for electrical wires and conduit.
reidster
Reviewed in the United States on February 3, 2024
Barrel nut will not stay tight and unwinds on its own while in use. Which then tightens itself to the hole saw. Totally ineffective.
TBJr
Reviewed in the United States on February 23, 2024
UPDATE FROM PREVIOUS POST: I had the opportunity this morning to cut holes with the "used" one I received (as described below). Even though the blade was obviously used, I was easily able to drill (3) 1" holes in stucco. I would definitely purchase this product again for other jobs.I just received these hole saws today and have not had a chance to use them yet. I ordered 4 new ones and wanted next day delivery because I needed them for a job the next day. 3 of the 4 were new and the last one was obviously used. There was no disclaimer when I ordered it saying anything other than new. If you order this item, get it with enough time to spare in case you receive a used one and need a replacement.
Drew
Reviewed in the United States on November 4, 2024
This bit drilled through my thick stucco wall quickly and easily. It was just the right size for my pancake size outlet boxes. I drilled six holes so far and it still seems to be working great.
Brian Dobbs
Reviewed in the United States on November 29, 2024
Fits attachments.
Camillo V Spina
Reviewed in the United States on April 27, 2024
Sturdy design, it will be used to cut a hole through asbestos siding for a dryer vent
David stanley
Reviewed in the United States on September 28, 2023
Needed to install a 4 inch vent for a portable a/c unit. This cut right through the brick, the mortar behind it and the plywood behind that. Nice clean hole.
Joshua S.
Reviewed in the United States on June 25, 2023
Good on Stucco, but wears down pretty fast
John D
Reviewed in the United States on October 25, 2023
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