This Stanley 10-099, commonly known as the "99" Utility Knife, is arguably the most iconic utility knife in the history of the trade. It is the classic, heavy-duty "workhorse" that has been a staple in tool belts for decades.

• Design Simplicity: The 10-099 is famous for its simple, rugged, all-metal construction. It doesn't feature the "Quick-Change" buttons found on newer models; instead, it uses a reliable, time-tested screw-assembly design. This makes it incredibly durable, as there are fewer moving parts to break or jam.

• Performance: The heavy-gauge steel housing provides excellent balance and weight, which can help provide better control during repetitive, long-duration cutting tasks.

• Reliability: Because of its straightforward design, professionals often favor the "99" for the most demanding environments where they need a tool that simply will not fail. It is fully compatible with standard utility blades.