Greenlee645-011 Small Arbor for 5/8" - 2-1/4" Kwik Change Carbide-Tipped Hole Cutter

Great product . Allows for quick change out of hole size and very precise allowing for your connectors to fit easily into the hole but tight enough to make the lock nut affective

Excellent

Its perect as long as u dont drop it or use it at high speed,if you are drilling down vertically through steel framing and it falls and hits floor the locking bearing will shoot out and make it useless

Because I constantly use multiple sizes of hole saws, this thing is awesome. The quick change out is so nice and the fact that you only have to buy new hole saws and not a whole new arbor everytime it gets wore out. I use it for stainless steel kitchen hoods all day long.

Exact replacement for one missing from my kit

These quick change arbors are awesome, especially when doing a big job and a saw dulls or breaks. The changeout is absolutely hassle free for the saw because you don't have to remove the arbor the get the saw off. Simply counter clockwise turn the saw and remove and and replace with a new one....no allens to fall out or tighten, no screw drivers needed. Just a glove for a pretty warm saw to change it.

Great tool, excellent quality.

I used this cutter to drill some holes in an automobile frame. I drilled them into the underside where the frame is double thickness (a boxed frame). Its almost 1/2 inch thick. Worked very well, but I went through 3 pilot bits. I recommend drilling a pilot with a 1/4 bit, then using the pilot to only center the cutter. The temptation is to cut with the pilot, because its a very hard bit that cuts well. However, it can't handle any bending whatsoever.

Performed well as expected.