At work we have a fancy Snap-On digital and a Matco cube. The cube is a square block with 1/2" drive in and out. It's programable to read torque or rotation. The cube lets you use any type of wrench with 1/2" drive to torque with, pretty handy in some cases. I took my three torque wrenches to work and clamped the cube in a vise. I set my wrenches and the cube to the same torque reading then used each one to check to see how close they were to the cube. My good one that I use all the time was 3 ft lbs low at the three torque readings I took, the older craftsman was right on at the lower settings but off at the 150 lb setting by only 5 or 6 ft lbs, the old beam was right on the money at all three settings, it suprised the younger guys! The $1100 digital Snap-On was all most new and no surprise it was right on the money.
