HHIP 2006-0122 3/8 Inch HSS Square Push Broach

My dad needed this to work on his 1956 Ford truck and it worked perfectly!I would highly recommend

Used this to make a 1 1/4 and 1 1/2 line boring bar. I wouldnt call any of them precision but some of the holes came out a little off from the bar wanting to turn as the broach was pushed through. I used a hydraulic press and plenty of cutting oil to broach about 12 holes and imagine it will last for many more.

Did a great job

Not much to say. Works well. Just as described. I am happy with the purchase. I am using it to cut the square hole for a 3/8 drive ratchet in tools that I am making.

Full disclaimer: I have no idea how to use a broach the professional way. That being said, it didn't work on 1/4" high carbon steel used on a plow. I tried it with a 12 ton shop press and the broach just wanted to bend. I stopped before it broke.

For background, I'm a professional machinist, not a hobbyist. I have a job for a customer making special sockets and need to broach 1/2" drive holes. Since I don't need it often, I decided to take a chance on a cheaper tool for this one job. Big mistake. To start with, the pilot is too large in diameter to fit in a 1/2" hole. Pretty hard to make a 1/2" square hole if you have to start with a round hole much larger than that. Since I'm time constrained on this job, I decided to grind the pilot to the correct size and try the broach. The first cutting surface on the broach is too aggressive and I had to stop on the first attempt as I was about to break the broach in the press trying to get it to cut. If all you need is a 1/2"ish size hole in an non-precision application, and are cutting soft materials, then maybe this will work for you. The better choice would be to by a better tool.

No doubt this is gonna work great for my project.

Cut was clean and square.