ITI ONLINE NOTE

  TYPES OF GAUGE 1- Limit gauge 2- Ring gauge 3- Snap gauge 4- Plug gauge 5- Filler gauge 6- Screw gauge 7- Screw pitch gauge 8- Radius gauge and Fillet gauge 9- Wire gauge 10- Fishtail gauge 11- Taper ring gauge. 12- Adjustable caliper gauge. 13- Progressive plug gauge. 1- Limit gauge:- i)- Components manufactured using mass production method are checked only to ensure that the sizes are with in the precribed limits. ii)- The most economical method of checking such components is by using limit gauges. iii)- These gauge are used in inspection because the provide a quick means of checking. 2- Ring gauge:- i)- These are used to check the outside diameter of the work pieces. ii)- Separate gauge are used for checking GO and NO-GO size. iii)- The NO-GO gauge is identified bu an annular grooves, cut on the knurled surface. 3- Snap gauge:- i)- Snap gauge are used as a quick means for checking sizes within certain limits by comparing the size of the parts with the opening of the gauge. 4- Plug