[mikeyrob]

so I was wondering if anyone has any carbide bits like 2" to 4" and how do they work for drilling out for panels and trough and stuff. Im mostly interested in a 4", so if you know who makes a good one for metal use please let me know, thanks!

 

[Ts103]

Talking about the hole saws? I use 1/2,3/4, and 1 inch on a daily bases and they last for a every long time. Any size biggie I find it's real rough on the cordless drills. Need a right angle drill for them ect. The punch is easier IMO for anything over 1 1/14

 

[Daniel Case]

Use a punch for big stuff

 

[samc]

Agreed only use 1/2, 3/4 hole cutters and punch for any bigger. But if you really wanted one you could buy one of those lennox holesaws.

 

[Jlarson]

I use the big carbides on stuff too heavy for punches.

 

[varmit]

It would require a drill with some real arm breaking torque to spin a 4 inch carbide cutter. A conventional hole saw is a little easier to spin with a drill. I agree, if the metal is less than 10 gauge, use a KO cutter.

 

[mikeyrob]

Yeah I use the 1/2, 3,4, and 1 a lot I was just hoping to try to replace the punch for the bigger stuff. Thanks for the input guys