supply of pie gauge & magnetic crack detector.pie gauge & magnetic crack detector.,magnetic field indicator pie gauge for determination of field orientation of ma gnetic field to detect the discontinuous in ferrous metal for magnetic inspection test. note : calibration certificate from nabl accredited lab to be submitted along with the material with manufacturi ng cert and traceable to nabl certificate lab to be submitted along with the material. [ warranty period: 30 months after the date of delivery ] ] , portable yoke magnetic crack detector. specification - 1. supply volt 220v (ac), 50hz , single phase, 5a (ac) source. yoke will draw approx. 2a at maximum load condition., 2. pole adjustment: - 0 to 275 mm (approx.), 3. pull force or lifting power at h.w.d.c. 28 kg max at 130 mm spacing., 4. yoke m t :- 3.9 kg (approx.). [ warranty period: 30 months after the date of delivery ] ]