Anti Ratchets / More Windows needed

[SixtySevenGT]

Ok so I have ported a few Tracks.

Round holes

I and doing anti ratchets on a typical 166 track.

Every 3 I believe are still closed.

Now I need square holes.

Hammer and Chisel ??

I know GuidoExpress had 1 166 with anti ratchets ( thats where I bought them)
HELP --

 

[mountainhorse]

Sharp wood chisel and a block of wood... pretty quick work... just use a hammer and cut them out... Use a 1" wide chisel... you can use a cheap one... just make sure it is sharp.

I do not recommend a hole saw as some have done

 

[SixtySevenGT]

Chisel it will be ---

I will have it off anyway.

 

[BIGGDAWG]

i used a razor blade to cut out my windows slow but it worked.

 

[rmkboxer]

I just used a sharp utility knife. I did a 159 took me about an hr