02-19-2018, 04:57 PM
Got to tell you, this is starting to be fun. We went to lunch and were talking about the new test stand and where we should go next. We've already decided that we're going to let our member testers figure out how higher HRC edges fare but we decided that shouldn't keep us from testing lower HRC knives. We just happened to have a perfect knife for the purpose. It's a knife cut out of a sheet of .030" spring steel.
Mcmaster Carr says that it is HRC 50. We sharpened the edge at 19 degrees (our test standard) and 140 sharpness. Then we rolled it exactly like the previous chef's knife test. After rolling, the edge tested 440, 458, 449 or an average of 449. That compared to the average 300 of the Henkel chef's knife which we assume is somewhere around HRC 55-57. There are a few differences here that may not make it quite a apples for apples test (specifically the behind the edge thickness is quite thin here) but the difference in roll is quite notable.
A 300 point roll is sizable and we cold easily hook our fingernail on this one. Using a Sharp Pad we were only able to straighten it back to 228. We used me2's trick then using the spine of the Henkel knife and got it down to 198 but that was the end of the road.
Mcmaster Carr says that it is HRC 50. We sharpened the edge at 19 degrees (our test standard) and 140 sharpness. Then we rolled it exactly like the previous chef's knife test. After rolling, the edge tested 440, 458, 449 or an average of 449. That compared to the average 300 of the Henkel chef's knife which we assume is somewhere around HRC 55-57. There are a few differences here that may not make it quite a apples for apples test (specifically the behind the edge thickness is quite thin here) but the difference in roll is quite notable.
A 300 point roll is sizable and we cold easily hook our fingernail on this one. Using a Sharp Pad we were only able to straighten it back to 228. We used me2's trick then using the spine of the Henkel knife and got it down to 198 but that was the end of the road.