Sharping flail mower blades

[37chief]

Anyone else sharpen your flail mower blades? I sharpen mine a couple times a year. Cutting green tough weeds with a dull blade looks like a bad hair cut. There's a bush that grows in the river bottom that a sharp blade has a struggle to cut it off clean. Dry weeds snap right off with dull weeds. but now there are still a lot of green weeds. Stan

 

[Buckhammer]

It takes a 1 5/16th socket to remove mine. I don't have a socket that big so i took the mower to the Mennonites who have a small engine shop near me. For $25 they took the blades off, sharpened them and put them back on. Seemed like a good deal to me.

 

[Jim.ME]

It takes a 1 5/16th socket to remove mine. I don't have a socket that big so i took the mower to the Mennonites who have a small engine shop near me. For $25 they took the blades off, sharpened them and put them back on. Seemed like a good deal to me.

What flail mower do you have with blade bolts that big? How many blades on it?

 

[MarkB_MI]

I've sharpened them by holding the knife with a Vise Grip in one hand and a 4-1/2 inch angle grinder in the other. Mott used to make a handheld grinder specifically for this purpose.

 

[showcrop]

Sharpening them is fine just so long as you are not cutting any brush larger than 1/4 inch.

 

[GermantownGreen]

Sharpening them is fine just so long as you are not cutting any brush larger than 1/4 inch.

Clamping with the vise grips, That's what we do to the blades on our NH H7230 discbines. Sharpen several times before they're really done, turn over to the other side. GG

 

[Buckhammer]

What flail mower do you have with blade bolts that big? How many blades on it?

My mistake. For some reason i had brush/bush hogs on my mind.