Screw Chek'r Identifies Metric Screw Sizes Instantly

Larger version of our popular metric 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 8 mm to 14 mm in I.S.O. pitches. Also straightens bent screws and cleans-up rusty and battered threads. Made in the USA of heavy gauge, satin chrome plated steel. Instructions included.