Overview of experimental serrated edge at 1000 hrs.
A.R.M* serrated at 1000 hours.
Close up of experimental A.R.M* serrated edge.
Overview of the new A.R.M* serrated grader blade after 230 hrs - standard edges are usually worn out at this stage.
Left hand end of the latest A.R.M* 16G serrated grader edge trial after 230 hours.
Right hand end of the latest A.R.M* serrated 16G grader edge after 230 hours.
A.R.M* serrated working fine in the mud on February 22nd 2000.
Depth of cut after one pass of the haul road using the new A.R.M* serrated.
Standard serrated edges average 100-200 hours before being worn out.
After 495 hrs the experimental A.R.M* serrated edges (with wings on the back) are still working fine.
About 45mm of cutting edge still to go after 495 hrs.
The scarifier wings on the back are in excellent condition after 495 hrs.
Experimental heavy duty serrated.
Heavy duty A.R.M* hardfaced.
Second trial grader ed
ge - the backside A.R.M* hardfaced for 100mm.
16G edges - rebuilt after 800 hours.
16G edges after an A.R.M* rebuild at 800 hours - these will now last another 800 hours.
Flat 16G edge - First version after 750 hours.
New A.R.M* serrated cutting edge - cost 350 dollars.
Heavy duty curved grader cutting edge - A.R.M* hardfaced.
Close up of the new patented A.R.M* serrated cutting edge.
"A.R.M* is an abbreviation of the company name Abrasion Resistant Materials."
