Five stars all around for this little gem! We'll let our customers tell you about the Thread Detective:
"These make sizing an unknown screw or bolt a snap."
"Very simple to use so just buy it you won't regret it!"
"Will get frequent use"
"Age old problem now solved"
"Must-have tools for your workshop"
"So clever and useful"
"They make misidentification nearly impossible and a problem of the past."
And our Review of the Week this week by Mike Miller, of Noblesville, IN:
"Another Rockler winner! Saves time and easy to use. I have both the SAE and metric versions and they are great. Thanks, Rockler."
The Thread Detective comes in both standard and metric, and every size has both a male and a female tester. We have to agree: Ingenious!