Thicknessl Gauge

0.001

Zero reference point will remain
  accurate even after many hours of
  use.

Applied 0.01

Low measuring force 0.4N
High measuring force 2.4N
Large dia contact point and anvil

0.01

Handy for measuring thickness of small
  parts, metal, rubber, vinyl, paper, foil
  and other sheet material.

Large

having extended throat depth to
  measure at the center of wide
  sheets.

Lens

can measure convex, concave,
  convexo-concave and any other
  lenses

Pipe

Measuring wall thickness of pipes and
  width of curved wood.

Roller

Convenient to continuously measuring
  thickness of thin objects, paper,
  rubber and film.

Sheet

Can measure wide sheets

Swift

Same purpose as an ordinary
  micrometer to measure outside sizes.