This American Made heavy duty steel 3/8 inch radius corner rounder punch cutter weighs under 10 ounces creating a substantial yet light weight round cornering solution for paper, PVC cards or laminated paper material. This welded design has less moving parts than most cutters in the same class and acts more like a cutter than a punch due to sharper cutting blade, which reduces user effort and cuts up to approx 5/32" thick (60 mils). Larger side guides make seating more secure too. 3/8 inch is approx 10mm radii. ★★★★★