Miniature Air Plug Gauges

Miniature Air Plug Gauges are designed to be hand-held and are connected to the display unit via flexible hose.

Due to their small size they have a restricted measuring range but are ideal for measuring small precision bores.

Sizes up to 2.29mm / 0.090in are made from solid tungsten carbide as blind bore versions only. Larger sizes are made from tool steel.

Miniature Air Plug Gauge

Miniature APG

Miniature Air Plug Gauge dgm

APG Ø
range 		A C
Through 		C
Blind 		D * E * F * Measure *
range (max)
mm 1.30 - 2.29 9.6 - 1.5 0.25 1.02 2.3 0.01
2.30 - 2.64 15.9 6.4 1.5 0.46 1.32 2.4 0.02
2.65 - 3.00 15.9 6.4 1.5 0.64 1.63 2.5 0.03
inch 0.051 - 0.090 0.377 - 0.060 0.010 0.040 0.090 0.0004
0.091 - 0.104 0.625 0.250 0.060 0.018 0.052 0.095 0.0008
0.105 - 0.118 0.625 0.250 0.060 0.025 0.064 0.100 0.0012
* The use of smaller jets will affect these dimensions and reduce the measuring range.