Inch Screw Chek'r for #4 to 1/2" in UNC and UNF Pitches
Screw Chek'r Identifies Inch Screw Sizes Instantly
Larger version of our popular inch-size Screw Chek'r is an ingenious, threaded gauge which quickly tells you size, threads per inch, tap drill size, clearance drill size, length and basic diameter of screws from #4 to 1/2" in UNC and UNF Ppitches. Also straightens bent screws and cleans-up rusty and battered threads. Made in the USA of heavy gauge, satin chrome plated steel. Instructions included.