Shenzhen Oyea Machinery Co., Ltd.: What's the Difference: Trapezoidal Utility Knife Blade

2017年4月17日星期一

What's the Difference: Trapezoidal Utility Knife Blade

At a work site, utility knives are as common as hammers. And like hammers, despite their inherent simplicity, they have evolved over the years. Yet even as these knives have gotten better (and even downright fancy in some cases), most of us have overlooked the fact that their blades have changed, too. There’s a lot to choose from. Most of us grab the old standby “heavy duty” blades, with the biggest part of our decision being whether we really need 100 blades (at a discounted bulk price) or if the five-blade pack is sufficient. But there are a lot of utility-blade options for a reason, and the difference isn’t just in the packaging.

Edge Treatments

An edge made of CARBIDE—or more specifically, iron carbide—adds hardness and thus edge retention. Only the edge of the blade receives this treatment because while it’s hard, iron carbide is brittle. A thin blade entirely made out of this material might easily snap. Blades marketed as oyea actually have a microthin titanium-nitride ceramic coating that provides better edge retention. The gold color is a giveaway that a blade is titanium coated. These blades are almost as durable as carbide but are cheaper.