Blaire Holcutter, anyone using them ?

[gotmud13613]

I have used there spotweld cutters for many years and noticed that they are selling hole saws, I am looking to replace my current tired-worn out hole saws with something new.

I am looking for any feedback on these or any other (good) long lasting holesaws for metal.

http://www.blairequipment.com/holcutters/holcutters.html

[born lucky]

I use Blair hole cutters all the time. They work very well-- fast, clean. Just keep them lubed when cutting. I have had my 2" resharpen several times.
You can buy them in sets Fabricator set etc etc.

[walrus]

I use them also, good stuff. I've abused the dickens out of mine, I try to keep them oiled but sometimes I'm in a hurry and I don't. I've cut a ton of 1.125 holes for 3/4 conduit and they still better than any hole saw I've ever used. Its a clean cut unlike a hole saw, so no cut fingers from the hole either. I think Lenox and Greenlee make something similar that have a spring that will eject the blank when done cutting. Doesn't sound like much but the cut is so clean the blanks don';t come out easy if they get wedged in. I'd say the arbor is the weakest link. I've screwed mine up doing larger holes, it still works but the threads are beat. I'd buy them again thats for sur.
Edit: I didn't even notice the picture of the spring loaded arbor, that must be new. I'd' go with it

[gotmud13613]

The one with the NEW symbol has carbide tips, I will be using these for 97% metal work, just wanted to make sure they are worth the extra dough, Thanks for the replies.

[Fast Orange]

I'm not sure of the manufacturer,but these cutters are sold under several trade names.I've been using the Hougen brand for several years and they're always my first choice for sheet metal work.A word of warning-if you are pushing hard on the pilot drill,when it goes through,the cutter teeth will grab and the drill will try to break your wrist.The best way to avoid this is to use a fender washer to keep the cutter teeth from digging into the workpiece.