LARGE SIZE - SLIDE LOCKING Large ABS plastic utility knife with a slide locking system. Fea tures • This utility knife works with .710" (18mm) blade (S06R) • Blade with 8 break-away segments SMALL SIZE - SLIDE LOCKING Small ABS plastic utility knife features a slide locking system. Fea tures • This utility knife works with 3/8" (9mm) blade (S05R) • Blade with 13 break-away segments SMALL SIZE - STEEL BODY AUTOMATIC LOCKING Small utility knife with automatic locking system. Fea tures • This utility knife works with 3/8" (9mm) blade (S05R) • Blade with 13 break-away segments utility Knives St arrett Cat. No. EDP Blade Width Description KUS050-N 30744 3/8" (9mm) Small Steel; Automatic Locking Pocket; Break-Away Cat. No. EDP Blade Width Description KUS055-N 30745 3/8" (9mm) Small Plastic; Slide Locking; Break-away Cat. No. EDP Blade Width Description KUS045-N 30743 .710" (18mm) Large Plastic Slide Locking KUS050-N KUS055-N KUS045-N 62 U tility K nives New!