Different edges finishes

Edge finishes
Slit edgesSlit / deburredMachined / deburredSquare edgesRound edges
Slitting leaves a straight edge
without excessive burr
ASTM : Edge N°3
Burr height :
Normal ≤ 10% of thickness
Precision ≤ 5% of thickness
After slitting, the corners are mechanically removed
ASTM : Edge N°3
After slitting, the 4 corners  are machined
ASTM : Edge N°5
After slitting, the 4 edges are machined to remove all burrs
ASTM : Edge N°1
After slitting, the edges are mechanically rounded
ASTM : Edge N°1