The small hole gauge has a measuring range of 0.3" to 0.4". It is used with an outside micrometer for measuring the inside diameter of bores and is extra long for gaging deep and shallow holes, slots, and similar workpieces. The gaging surface is fully-hardened to ensure a long tool life.
The small hole gauge has a measuring range of 0.3" to 0.4". It is used with an outside micrometer for measuring the inside diameter of bores and is extra long for gaging deep and shallow holes, slots, and similar workpieces. The gaging surface is fully-hardened to ensure a long tool life.