SET OF WHEEL MEASURING GAUGES CONSISTING OF ( 1 ) FLANGE WEAR GAUGE FOR THICK PROFILE, MODEL NO. FWG- 1 OF MAKE- PIE OR SIMILAR- 1NO. ( 2 ) ROOT WEAR GAUGE FOR THICK PROFILE, MODEL NO. RWG- 1 OF MAKE- PIE OR SIMILAR- 1NO. ( 3 ) WHEEL DISTANCE MEASURING GAUGE, MODEL- WG- 1 ( V ) OF MAKE PIE OR SIMILAR = 1NO. ( 4 ) TREAD WEAR MEASURING GAUGE, MODEL- TWG- 1 ( BGL ) SUITABLE FOR THICK PROFILE OF MAKE PIE OR SIMILAR = 1NO AS PER RDSO ' S DRAWING NO.- SKDL- 4444 AND 4445.