New plow wear plate with square holes.

[KC9KAS 4,742]

Been working on a "new" plow for my GT-14. Information says it will handle a 54" front plow.

I had a couple of fair looking 42" plows, so I took the best parts from both plows and made a nice 54" plow by adding 6" of plow to each side of the best 42".

Now I am working on the plow cutting/wear edge. I wanted the 3/8" square holes for the 3/8" carrage bolts, but wasn't sure where I could get this done.

At my work place they have a "mega-buck" iron worker that will do all kinds of stuff, but they don't have a 3/8" square die...Next best thing is a square broach. I have attached some pictures of the broach, plow wear edge, and the press I used to cut the 3/8" round hles to 3/8" square holes!

This broach is round on the starting end, and is tapered to the opposite end, and is square. Up use a press to "push" it through the steel.

[maxed500 10]

I've always wondered how square holes were made.

[can whlvr 993]

lots of square holes are simply punched with a die and hydrolic pressure

[AMC RULES 37,144]

Looks like it works pretty good...hard to push it through?

[KC9KAS 4,742]

No it was not hard to push through the steel.

You start with a round 25/64" round hole (1/64 larger than 3/8") and the broach is probably 8" long. In those 8" you go from a 3/8" round hole to a 3/8" square hole.

It is designed to be used with an arbor press (hand operated press), but a hydraulic press works fine too!

[rwilson 128]

sure beats a square file!!

[Tankman 3,520]

sure beats a square file!!

Looks like a square rasp! I've used many square punches when in the

steel business, never saw one of these. Going to have to get one! :-)