The Screw Checker is a precision threaded tool for complete instant identification of Inch or Metric Screws. This quality tool made of heavy-gauge steel is satin-chrome plated, expertly machined & threaded and American made!
All do-it-yourselfers, handymen, mechanics and maintenance people have too often experienced the frustration and loss of valuable time and money by mistakenly identifying a screw. With this easy to use, pocket sized tool you can kiss those problems goodbye! No more headaches, cursing, or pulling out your hair your family and/or co-workers will thank you for this purchase!
Unlike their plastic counter parts, these screw checkers, made of heavy gauge steel, will last for a very long time without the worry of wearing out the threads after a few uses.
We offer four sizes: A SAE/Inch-Small model that will check screw sizes ranging from #1 to 5/16" in the NC, NF & NS pitches and a SAE/Inch-Large model that will identify sizes ranging from #4 through 1/2" in the NC and NF pitches. A Metric-Small model that will check check screw sizes ranging from 2mm through 7mm in the I.S.O. pitches and a Metric-Large model that will identify sizes ranging from 8mm through 14mm in the I.S.O. pitches. All models will identify screw size, pitch and length.
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