Pocket knives: Locking mechanisms on pocket knives
FC Folding Pocket Utility Knife - Heavy Duty Box Cutter with Holster, Quick Change Blades, Lock-Back Design, and Lightweight Aluminum Body - - Amazon.com
Husky Folding Lock-Back Utility Knife 99731 - The Home Depot
Buck Knives 110 Folding Hunter Lock Back Knife - Walmart.com
The Complete Guide To Knife Locking Systems | HiConsumption
WORKPRO Folding Utility Knife Set Quick Change Blade, Back-lock Mechanism 3-piece with 10-piece Extra Blades - - Amazon.com
Knife Lock Types Guide - Knife Life
Back-lock to Slipjoint Conversion - TACTICAL REVIEWS
Back lock or lockback | Knife, Belt grinder plans, Folding knives