Precision Instruments M1R200HX 1/4" Dr Micrometer Click Torque Wr 30-200 Lb.In.

Features and Benefits: Patented roller release mechanism extends the life of the M series for hundreds of thousands of cycles Patented lock ring is easy to use Wide usable scale from 30 Lb.In. to 200 Lb.In. with 3% accuracy All steel construction for increased durability Made in the USA and ships in an American made plastic box Engineered, precision bearing surfaces extend the calibration life of the M line to as many as 60,000 cycles or more and ensures the most reliable performance possible.  Meets or exceeds ASNI/ASME B107.14M, GGG-W-686C, GGG-W-2843 and ISO6789.