Set Of Master Gauge For Setting Of Snap Dial Gauges For Od Of Shafts Thickness-40Mm, Materia L-Cold Work Tool Steel, Hardness-60/65 Hrc, Accuracy (+ Or - 0.002 Mm). A Set Consists Of 8 Items As Follows- (I) 319 Mm, (Ii) 305 Mm, (Iii) 214 Mm, (Iv) 205 Mm, (V) 184 Mm, (Vi) 179 Mm, (Vii) 105 Mm, (Viii) 100 Mm, Qty- 01 No Of Each Size. Calibration Certificate From Nabl Approved Laboratory To Be Submitted Along With Material. [ W Arranty Period: 30 Months After The Date Of Delivery ] ]