Not All Cutting Edges Are The Same -- Only Channellock® Uses Precision Machined Knife and Anvil Style Cutting Edges to Ensure Perfect Mating and Superior Cutting Edge Life. The Channellock® Knife and Anvil Cutters Ensure Proper Cutting Edge Alignment, Resulting In A Clean Cut Every Time. Most Manufacturers Use Two Sharp Edges Which Can Become Misaligned, Losing Their Cutting Effectiveness.