Holtest
DIMENSIONS
Reference dimensions when measuring a blind hole
Unit: mm
Range (mm)
L 3 (mm)
L 4 (mm)
L 5 (mm)
2 - 6
—
— 2
6 - 12
2 or below — 2.5
L 2 L 2
12 - 20 20 - 30 30 - 50 50 - 100
5.6 8.3
3.5 5.2
L 1 L 1
0.3 or below
13.0 17.0
10.0 14.0 13.8
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Range
L 2
L 1
100 - 300 12.4 or below 21.0
2 - 2.5, 2.5 - 3 mm 3 - 4, 4 - 5, 5 - 6 mm
12 22
103.5 - 104 113 - 114
Note: External appearance differs depending on the measuring range.
L 2 L 2
L 1 L 1
Typical application of Extension Rod
Range
L 2
L 1
6 - 8, 8 - 10, 10 - 12 mm
59 82 94
102 - 104 126 - 130 137 - 142 145 - 155 150 - 163
12 - 16, 16 - 20 mm 20 - 25, 25 - 30 mm 30 - 40, 40 - 50 mm
102 105
50 - 63, 62 - 75, 75 - 88, 87 - 100 mm 100 - 125, 125 - 150, 150 - 175, 175 - 200, 200 - 225, 225 - 250, 250 - 275, 275 - 300 mm
161
227 - 252
Note: External appearance differs depending on the measuring range.
L 2 L 2
L 1 L 1
For special-order products, contact Mitutoyo America
C-8
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