Replies to This Discussion

Permalink Reply by Calvin Jay Garner SR on June 11, 2010 at 8:28am

Hello Gary, The AASHO's standard highway punch pattern is a 3- 3- 12 etc. 12 -3-3. The first hole is 3 inches in from the edge of the blade and the next hole is 3 inches from that first hole. The remaining holes are 12 inches apart from the second hole and the blade finishes up at 3 -3 on the other edge. This pattern can be top punched on 1 5/8" gauge line or it can be center punched. Yes there are many hole punching variations today but the true standard will always be the 3-3-12 etc. 12-3-3 punch pattern across the USA. Calvin - Evoluntionedges

Permalink Reply by Gary Prawdzik on June 14, 2010 at 4:33pm

Thanks for the speedy reply Calvin!

Can I ask, how do you know this, do you work with municipal-type plows?

Permalink Reply by Calvin Jay Garner SR on June 15, 2010 at 7:32am

Hello Gary, I have been providing winter blades and products for all types of plows for ten years now. My new company is Evolutionedges and you can check it out at www.evolutionedges.com. Thanks, Calvin