Stanley® Utility Knife Blade, Sharp Point/Straight Edge Blade Design, 2-3/8 in Blade Length, 3/4 in Blade Width, 0.025 in Thickness, 2 Points, Applicable Materials: Ceiling Tile, Drywall and Wallboard, Compatible with: 1EZ81, 1UK24, 1UK33, 2TJ71, 2TJ732, 2TJ73, 3CA88, 3MK81, 3PY48, 3Q020, 4A803, 5C947, 10-550, 5C944, 5C945, 5C947, 5C948, 5R675, 5R682, 5TG43 and 3Q021 Utility Knife, Carbon Steel. Stanley® 11-937L Utility Knife Blade, Sharp Point/Straight Edge, 2-3/8 in L x 3/4 in W, 0.025 in Thick, Carbon Steel