- Model K Portable Bolt-Tension Calibrator
+ Fastener: Bolts 1-1/4” through 2-1/2” (M32— M64)
+ Preload Capacity: 225,000 lbs (can be upgraded to 450,000lbs—2,000Kn)
+ Tool/Size: 1” to 2-1/2” square drive
+ Test Bolt Assembly: 6 sizes available — 1-1/4” to 2-1/2”