That last one is a Heavycut slasher, derived from the old Mobilco Heavycut unit after Mobilco was shut down around 1977. Not much can stop one of these!

As vccomm has said, it should have at least one skid fitted, to control the height of cut.

The pic on this webpage shows a few complete ones, and this company still does parts for them. http://www.heavycut.com.au/index.htm

Cheers,
Gadge

"ODK Mods can explain it to you, but they can't understand it for you..."

"Crazy can be medicated, ignorance can be educated - but there is no cure for stupid..."