The semi high speed grade is optimum for usage in cutting highly abrasive materials. The 0-7 tool steel will outwear the 52100 approximately 2 ½ times in abrasive applications. If knives dull from edge fatigue or crumbling, then 52100 will work nearly as well for less money.

The semi high speed grade is optimum for usage in cutting highly abrasive materials. The 0-7 tool steel will outwear the 52100 approximately 2 ½ times in abrasive applications. If knives dull from edge fatigue or crumbling, then 52100 will work nearly as well for less money.