Fowler's 6"/150mm Pocket Steel Rule with convenient clip is constructed of tempered stainless steel with a satin-chrome finish for easy, glare-free reading. These pocket steel rules include rounded edges to prevent damage to shirt pockets. Features Include... 6" / 150mm Measuring Range Inch graduations are in 64ths Metric scale is in 1mm increments Width: .470" Thickness: .021" $30 Total Minimum Order