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hole saw
A hole saw (also styled holesaw), also known as a hole cutter, is a saw blade of annular (ring) shape, whose annular kerf creates a hole in the workpiece without having to cut up the core material. It is used in a drill. Hole saws typically have a pilot drill bit (arbor) at their center to keep the saw teeth from walking. The fact that a hole saw creates the hole without needing to cut up the core often makes it preferable to twist drills or spade drills for relatively large holes (especially those larger than 25 millimetres (1.0 inch)). The same hole can be made faster and using less power.
The depth to which a hole saw can cut is limited by the depth of its cup-like shape. Most hole saws have a fairly short aspect ratio of diameter to depth, and they are used to cut through relatively thin workpieces. However, longer aspect ratios are available for applications that warrant them.
Cutting with a hole saw is analogous to some machining operations, called trepanning in the trade, that swing a cutter analogous to a fly cutter in order to achieve a similar result of annular kerf and intact core.
Selling cheap! Unused minus one of the hole saws looks to have drilled one hole.
Will sell for 50 bucks, or trade for 500 rounds of CCI Standard Velocity (or similar subsonic) 22lr, 147 grain 9mm subs, 44 mag or 44spc subs, 200 rounds of m193 556, or 5 magpul or surefeed mags.
Thanks for looking.
I have some hole saw kits that are spare. I used to use a lot of these but now my company provides them so I have unneeded new and slightly used kits. The prices are a good deal off new price but willing to consider offers.
Milwaukee 49-22-4095
ELECTRICIAN'S HOLE SAW KIT
10 Piece, used once or...