For every nut, bolt, and fastener on your car or truck, the factory probably recommends a specific amount of torque to tighten it down to. Mac makes two models of adjustable 1/4″ torque screwdrivers — the TSM4-22 and the TSM16-88 — that measure torque from 4 to 22 in./lbs and from 16 to 88 in./lbs respectively. With these little guys you can torque down even delicate fasteners without winging it.
A window on the driver’s handle shows the amount of torque with an accuracy of ± 6%. You adjust the screwdriver to the desired torque setting with an allen wrench — once you’ve applied the desired amount of torque, the driver disengages. Contact a Mac dealer for prices and availability.
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