Knock out block... which one?

[lallin]

I have a preference for the metal topped wood knock out blocks from Pendemonium that come with four punch rods. I have used one for years and have never had a problem or a section that I couldn't work with it. A satisfied customer so to speak. <snip>

I too have used one of these Pendemonium knock blocks for years with great success and recommend it without reservation.

[Ron Z]

Instructions on how to make your own block, with suggested size holes, and instructions on how to make a bunch of other tools can be found on my web site... The article is titled Cheap Tools.

[Gedion]

Ace Hardware sells a metal template with predrilled holes of various sizes so you don't have to drill aluminum.

 

Also the post regarding Fry's Bionic Wrench is a slick deal as well similar to the spark plug wrenches with rubber coating.