Screw Chek'r

Valuable time and money is lost each year by mechanics, maintenance people and do-it-yourselfers using the wrong size screws. This is especially true when it comes to guessing metric screw sizes. Now an easy-to-use, foolproof tool eliminates these problems.

Crafted with pride in USA, the Screw Chek'r/Identifier fits easily into your shirt pocket for convenient use whenever you need it. Manufactured from either high-impact styrene or heavy gauge satin chrome plated steel.

for more info please see http://www.newmantools.com/gauge/screwchekr.htm