Bore Gages0 pages

Bore Gages

For easy and accurate measurement of inside diameters

Bore Gages
SERIES 526 — for Extra Small Holes
• These gages are designed to measure the
diameters of very small holes. The radial
displacement of the split-ball anvil is converted
to axial displacement of the measuring rod,
which is shown on the dial indicator.
• Dial indicators and protection covers are
optionally available.
t Some indicators and protection covers cannot
be used with these bore gages. Contact a
Mitutoyo sales office if considering the use of
dial indicators or Digimatic indicators other
than recommended models.
• An optional stand (215-120-10) is available
for efficient measurement of multiple small
holes. Refer to page C-30 for details.

Measurement principle
L

Pin point
1/2·L

Anvil

Technical Data

Accuracy
Metric models: 4μm
Inch models: .00016"
Repeatability
Metric models: 2μm
Inch models: .00008"

Optional Accessories
526-170
* The dial indicator and the protection cover are optional.

SPECIFICATIONS
Metric

C

Order No.

Range

526-170
526-160
526-150
526-172
526-162
526-152
526-173
526-163
526-153

0.95-1.55mm
1.50-4.00mm
3.70-7.30mm
0.95-1.55mm
1.50-4.00mm
3.70-7.30mm
0.95-1.55mm
1.50-4.00mm
3.70-7.30mm

Bore gage
526-170
526-160
526-150
526-170
526-160
526-150
526-170
526-160
526-150

Content of set
Dial indicator Dial protection cover Anvil Pin point Setting ring
5 pcs. 1 pc.
5 pcs.
Not supplied
Not supplied
9 pcs. 2 pcs.
9 pcs.
7 pcs. 1 pc.
7 pcs.
5 pcs. 1 pc.
5 pcs.
2109SB-10
21DZA000
9 pcs. 2 pcs.
9 pcs.
(Graduation 0.001mm)
7 pcs. 1 pc.
7 pcs.
5 pcs. 1 pc.
5 pcs.
2046SB
21DZA000
9 pcs. 2 pcs.
9 pcs.
(Graduation: 0.01mm)
7 pcs. 1 pc.
7 pcs.

Probing depth
11.5mm
17.5, 22.5mm
32.0mm
11.5mm
17.5, 22.5mm
32.0mm
11.5mm
17.5, 22.5mm
32.0mm

Inch
Order No.

Range

526-175
526-165
526-155
526-176
526-166
526-156

.037-.061”
.06-.157”
.145-.29”
.037-.061”
.06-.157”
.145-.29”

Bore gage
526-175
526-165
526-155
526-175
526-165
526-155

Dial indicator

Content of set
Dial protection cover

Not supplied

Not supplied

2923SB-10
(Graduation: .0001")

21DZA000

C-27

1/2·L

Anvil Pin point Setting ring
5 pcs.
1 pc.
5 pcs.
9 pcs. 2 pcs.
9 pcs.
7 pcs.
1 pc.
7 pcs.
5 pcs.
1 pc.
5 pcs.
9 pcs. 2 pcs.
9 pcs.
7 pcs.
1 pc.
7 pcs.

– : Dial indicator (See Chapter F)ttt
21DZA000: Dial protection coverttt
215-120-10: Stand for small holes

Recommended dial indicators

Metric models:t 2046SB (0.01mm)
t
2972TB (0.01mm - One-revolution type)
t
2109SB-10 (0.001mm)
t
2900SB-10 (0.001mm - One-revolution type)
Inch models:t 2922SB (.0005")
t
2977TB (.0005" - One-revolution type)
t
2923SB-10 (.0001")
t
2910SB-10 (.0001" - One-revolution type)

Recommended digimatic indicators

Metric models:t 543-264B (ID-C112GB: 0.001mm)
Inch models:t 543-266B (ID-C112GEB: 0.001mm/.00005")
* Indicators equipped with rubber bellows, such as waterproof types, cannot be used.

Probing
depth
.45”
.68,.88”
1.25”
.45”
.68,.88”
1.25”

Mitutoyo operates a policy of continuous improvement that aims to provide the customer with the benefit of the latest technological advances.
Therefore the company reserves the right to change any or all aspects of any product specification without notice.