420EM Combination Square, 16 in L Blade, SAE/Metric Graduation, Stainless Steel Blade

Johnson's easy-to-use 16 in combination square gives you the accuracy and precision you need for every job. Its stainless steel blade has English graduations of 1/8 in, 1/16 in and 1/32 in as well as metric graduations that are permanently etched in black for easy readability. It features a durable acrylic vial, heavy-duty cast zinc head with a black, chip-resistant e-coating finish and hardened screw-in scriber that won't fall out so that this combo square can withstand even the roughest jobsite abuse. It was also designed with maximum accuracy in mind, its Auto-Lock™ blade assembly makes it easier to accurately line up your tool for use.