Base made from finely lapped Granite OR Cast Iron , housing made from Cast Iron and Pillar from Ground Steel.
Main housing slides over the pillar and can be locked at any position.
Fine adjustment in Bench Comparators is possible through auxiliary slides where a dial gauge is mounted.
Bench Comparators have throat depth of 100 mm and accept jobs up to 200 mm, to suit 8 mm thimble for admitting dial gauge.
Granite Base Universal Comparators are provided without fine adjustment. Column spiral grooved pillar, mounted symmetrically allows the dial gauge to be positioned over virtually all points on the Base.
Cast Iron Universal Comparators having hardened and ground serrated platform provided with lapped ground finish with spiral grooved column, pillar mounted symmetrically allows the dial gauge to be positioned over virtually all points on the base.