Innovative Components AH-COM Thread Detective/Thread Identifier Inch and Metric Combo set All Steel identifiers on a wire lanyard , Inch Sizes #6 thru 1/2 in both coarse and fine threads , Metric  sizes M4- M12 in the most common pitches Ruler Attached
Thread Detective/Thread Identifier Inch and Metric Combo set All Steel identifiers on a wire lanyard , Inch Sizes #6 thru 1/2 in both coarse and fine threads , Metric  sizes M4- M12 in the most common pitches Ruler Attached