Baker Gauges India Private Limited manufactures Air Plug Gauges and Setting Rings. Baker Gauges India Private Limited also manufactures various types of gauges and micrometers. The Air Plug Gauges and Setting Rings, ID Range, are used for quick and easy checking of bore size, taper and ovality. The Air Plug Gauges and Setting Rings have extensions to check deeper bores. These Gauges and Settings Rings can be supplied to check blind bores. These Gauges and Settings Rings are supplied with multiple jets.