Sturtevant-Richmont 850191 M 100 I Ball Handle Imperial M Beam Wrench Torque Range: 20-100 in-lb Drive Size: 3/8" Square Drive Features SR Model Number: M 100 I Memory feature consists of pointers that follow a track on the scale and remain in place to indicate peak torque achieved Peak torque indicated on the scale is accurate even in destructive applications Low mass/low inertia design of pointers helps eliminate reading distortion Very low cost of ownership - exceptional accuracy retention permits extended calibration intervals, and they are virtually maintenance and repair free! Incredibly durable design - actual service life frequently measured in decades! Meets or exceeds ASME B107.300 - 2010 and ISO 6795 Visit Sturtevant-Richmont Imperial Ball Handle M Beam Wrench to view more products similar to Sturtevant-Richmont 850191