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Speed Slot Hole Saw

Lenox - Speed Slot Hole Saw

The Speed Slot hole saws from Lenox are available in 52 sizes, from 9⁄16 in. dia. to 6 in. dia., and in a variety of kits for general use and for plumbers and electricians specifically

$0.00 (As of 3/8/2012)

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posted by: Winter2sun
11/16/2012

Interesting approach to using bi-metal hole saws in wood. I tried one on particle board and by the time the first hole was made the lenox speed slot hole saw was smoking. The slots are designed to make it easier to pry out the cut plug but do not work as well as having two 1/4' holes at the base of the hole saw. All bi-metal hole saws share the same problem in that too little material is removed at the inside edge and so there is contact area of the entire surface of the plug against the inside of the hole saw. The solution is simple, have teeth that extend past the inside edge of the sidewall of the hole cutter. The Milwaukee Big Hawg was one of the first in the USA to have this feature. Cut with this hole cutter and the plug falls out to the ground when you get through a board. Now there are the Blue Boar TCT hole cutters that improve on the Milwaukee with the use of tungsten carbide teeth and thinner side walls so that they can stack inside a case (Big Hawgs cannot). They all have a 2" cutting depth which is far greater than bi-metal hole saws. Bi-metal are good for metal - period. No one would cut a 2x4 with a hacksaw blade but for some reason people have not caught on to using something designed for wood to cut holes.