? Indian instruments pvt ltd presents nag dial bore gauges for
quick checking of diameters, roundness, taper, wear and allied
parameters of bores at any desired depth, with direct reading on
the dial gauge and are available in a wide range of models
incorporating user-friendly features: wide diameter range (6 mm to
1,000 mm) through a number of models; self-centering feature to
ensure maximum measuring accuracy with minimum operator skill;
hardened and ground contact points and wear surface (carbide
contact points on request); quick setting threaded type anvils also
available in five models covering 10-250 mm range; and two models,
in 250 mm to 1,000 mm range, have telescopic anvils for easy
adjustment. The company also offers a special bore gauges for deep
bores, for shallow depths, with right angle attachment, fitted with
micrometer head of equivalent inch size