Comparison : Item # WNRT1.51.20F5, Trigon Negative F5 Chipbreaker with ISO Style Hole, thickness 0.094 / 0.100 in
Item # WNRT1.510F5, Trigon Negative F5 Chipbreaker with ISO Style Hole, thickness 0.078 / 0.084 in
Item # WNRT21.50F5, Trigon Negative F5 Chipbreaker with ISO Style Hole, thickness 0.109 / 0.115 in
Item # WNRT21.52F5, Trigon Negative F5 Chipbreaker with ISO Style Hole, thickness 0.109 / 0.115 in