I believe the steel is the harsher of the 3 I use. The EZE-Lap diamond sharpening rod, that comes in the tube on the front of my 4 5/8 inch Stanaback Special, ain't easy on the blade either...even worse than the steel. It is intended for touch up "in the field" only.
Best, Capt. Chris
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Capt.Chris Stanaback
RKCC/RKCA Founder
RKS #016
NRA Lifetime Member
CAPTSTANABACK@aol.com
WEBSITE: www.captstanaback.com