The UBK is a set of 5 double pointed replacement blades for the utility knives.
Double-Point Blades (50 pk), UKBU50PK
Two designs for steel utility knives. (a) Double-ended blade for
Medium-Size OTF Double Action Knife MD3RP
How to Use a Utility Knife - Best Utility Knives 2022
IDEAL® 35-300 The Reynolds Company
Utility knife - Wikipedia
Snap On Catalog, PDF, Mechanical Engineering
Long Description Slice Industrial Ceramic super safe utility replacement blade. Razor-sharp hand sharpened ceramic utility replacement blades, fit
Slice 10525 Ceramic Utility Blades (Pointed Tip), True Safety Blades, Finger Friendly, Safe to Touch, 11x Longer Lasting Than Metal, Double-Sided
RazorPro, Replaceable Blade Hunting Knife
Lenox Tools 20351GOLD50D Titanium Coated High Speed Steel Double
Malco UBS5 Straight Double Point Blades, 5-Pack
CYEAH 100 Pcs Utility Knife Blades, Thickened SK2 High-Carbon