Micrometers
Telescoping Gage Set SERIES 155
• These tools are for comparing and measuring the diameters of extremely small holes or the widths of narrow grooves that are hard to measure with the other measuring instruments.
• A spring-loaded plunger expands within a bore (or groove) and is locked in place allowing diameter measurements (or width) with an outside micrometer after extraction.
Typical application
B
155-903
SPECIFICATIONS Inch Order No.
Metric
Order No.
Range (in)
Range (mm)
6-gage Set
6-gage Set
155-903
155-905
0.313 - 6
8 - 150
Gages included 155-121
Gages included 155-127
0.313 - 0.5 0.5 - 0.75 0.75 - 1.25 1.25 - 2.125 2.125 - 3.5
8 - 12.7 12.7 - 19 19 - 32 32 - 54 54 - 90 90 - 150
155-122 155-123 155-124 155-125 155-126
155-128 155-129 155-130 155-131 155-132
3.5 - 6
4-gage Set
5-gage Set
155-907
155-904
0.313 - 2.125
0.5 - 6
Gages included 155-121
Gages included 155-122
0.313 - 0.5 0.5 - 0.75 0.75 - 1.25 1.25 - 2.125
0.5 - 0.75 0.75 - 1.25 1.25 - 2.125 2.125 - 3.5
155-122 155-123 155-124
155-123 155-124 155-125 155-126
3.5 - 6
DIMENSIONS
Unit: mm
ød 2
Range (mm)
L
øD ød 1
ød 2
Clamp
8 - 12.7 12.7 - 19 19 - 32 32 - 54 54 - 90 90 - 150
5
4
3
110
5.5 5
3.5
150
8
7.5 6
ød 1
L
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