Sheffield Folding Lockback Utility Knife Value Guide

The Sheffield Folding Lockback Utility Knife represents a significant evolution in tool history as the first patented design to merge a traditional pocket knife's portability with a heavy-duty box cutter. Produced by GreatNeck, these blue anodized aluminum tools are sought after for their role in revolutionizing the early 21st-century utility market.

What affects the value of Sheffield Folding Lockback Utility Knife?

• Condition of the blue anodized coating, as scratches or fading can reduce the $12-$15 market value.
• Mechanical integrity of the lockback system and the blade release button.
• Presence of original packaging or included spare stainless steel blades.
• Historical significance as an early example of the first patented folding utility knife design.

How to Identify Sheffield Folding Lockback Utility Knife?

• Look for the distinct blue anodized finish on the aluminum handle scales.
• Verify the presence of the patented lockback mechanism and the quick-change blade holder system.
• Check for the Sheffield brand logo, typically associated with GreatNeck distribution.
• Confirm the construction materials are a combination of aluminum and stainless steel.

History of Sheffield Folding Lockback Utility Knife

The Sheffield brand, owned by GreatNeck, revolutionized the utility knife market by introducing the first patented folding lockback utility knife. This design combined the safety and portability of a traditional folding pocket knife with the heavy-duty functionality of a standard box cutter, making it a staple in toolboxes since its introduction in the early 2000s.