Tighten-down nut design helps to eliminate wobble. Smooth feel. 7/16-inch hex shank. For use with 9/16- to 1 3/16-inch hole saws. Durable, heavy duty construction. Has a split-point tip pilot drill.
A bit more expensive than other options.
Features a 1/4-inch hex shank. An effective arbor that fits most standard hole saws. Very affordable price.
Some buyers felt that this option didn't hold as much torque as a standard hole saw arbor. A few reports of this option breaking easily.
Can use it to enlarge holes that have been drilled too small. Quality made, and very effective. For use as a replacement on any Starrett A1, A2, or A10 type arbors.
Some felt that this option was smaller and less robust than they expected.
Easy to engage and disengage without the need for any tools or adapters. Good quality material, and a solid design. Prevents threads from stripping.
Thicker than expected. Some found that this required a little more effort to unlock.
Has an ergonomic grip. 3/8-inch Q/C. Easy to use, and simple to put on and take off. Works for a range of hole saws, from 1 1/4 inches to 6 7/8 inches. Heavy-duty feel. Has a pin extractor mechanism for ease of blade mount.
The set screw that holds the pilot drill can be hard to loosen.
A hole saw arbor, also known as a mandrel, connects a drill chuck to the actual saw itself. As a result, a high-quality arbor is important in making sure you get cleanly cut holes each time. To choose the right arbor, you need to look at the compatibility of the shank size and drill chuck size. 3/8" and 1/2" are the most common although some use a 1/4" diameter. The shape of the shank will also influence how secure the arbor is in the drill. Flat and hex-shaped shanks are the best to keep the arbor secure in jaw-like drill chucks.
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