Review on 💡 OTC 3639 Extra Long Heavy-Duty Circuit Tester: Unmatched Performance for Quick and Accurate Electrical Testing by Michael Boyle

Returned first after pulling the dipstick out of the handle when removing the protective plastic piece on the end of the dipstick. On the second one I got, the probe still rotates and pulls out of the handle easily. It works fine but I may have to pour epoxy in the probe to keep it from falling out. Next time I buy an advanced test lamp I'll buy an SG Tool Aid which is much better built.