4 Thread Knurl and non-protruding jaw provides greater capacity and minimal head width equals improved performance in confined spaces. Up to 18% longer jaw avoids slippage or nut round off. Up to 20% Greater Jaw capacity supports bigger nuts and bolts. Precise jaw design grips tight the first time, every time. Superior quality by virtue of design - bigger, longer, thinner, tighter The new Channellock 8" Chrome adjustable wrench with wider capacity features improved performance and torque. Avoids slippage or nut round off. Supports bigger nuts and bolts. Up to 22% thinner jaw permits greater access in tight spaces.