Description

Brass dial head about 40mm dia. Divided in 100 parts registering on vertical scale 10-0. 10mm. on metal black painted frame.

Lead screw and three legs (40mm. separation) are of mild steel.
TYPE              SCREW PITCH         READING

1.                          1MM                            0.01MM
2.                         0.5MM                          0.0005MM
3. But legs are of stainless steel, disc type. Heavy duty.