【214 Thread Checker Kit with 39SAE&36Metric&144Drill Bit Coveage】 thread checker set covers most Coarse & Fine screw & Drill bit pitches, ranging from tiny 2-56/M2-0.4/φ1.0 up to large 1-12/M24-3.0/φ12.7. One thread set lets you quickly identify sizes for loose bolts, nuts and drill bits, ideal gift for Dad, Mechanics
【Precision Thread Verification】Expertly engineered with CNC machining, our thread checker adheres to the Go/No-Go Class 2B ANSI Standard, delivering reliable measurements for both internal and external threads. Eliminate uncertainty and ill-fitting fasteners, experience effortless, flawless precision every time.