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Jam Proof Dial Indicators

Dorsey's high amplification dial indicators feature a shock proof "following" type jeweled movement utilizing the unique lever principle of amplification and lightweight low inertia segmented precision gears for unparalleled accuracy and repeatability.

  • Available with ISO 17025 certification.
  • High amplification movement.
  • Lever principle of amplification - minimizes effect of spindle sideshake. Linearity and repeatability maintained through millions of cycles.
  • 3-5/8" bezel - conforms to ANSI/AGD standards.
  • Adjustable gaging force - easily adjustable from 2 to 5 oz. by externally accessible screw.
  • External zero adjustment knob - makes possible the advantage of adjusting indicator hand to zero rather than rotating bezel to 'zero' hand.
  • Optional lifting lever or cable release. Use lifting lever only when indicator is back mounted. Cable release may be used when indicator is back or stem mounted for enhanced stability of gaging setup
  • Graduations as fine as 0.00002"
  • Improved readability and minimized judgement error
  • Performance comparable to more expensive gaging methods
  • Convenient portability - no external connections required
  • Interchangeability - can be used in the same environment as any other mechanical dial indicator
  • Simplified service - complete movement is easily removed from the case for cleaning or direct replacement at low cost

Title Sort descending Graduation Gaging Travel Dial Accuracy Repeatability Revolutions
2I01-001mm Dial Indicator 2I01-001mm 0.001mm 0.1mm 0.05-0-0.05mm +/- 0.001mm +/- 0.0002mm 1.00
2I02-002mm Dial Indicator 2I02-002mm 0.002mm 0.2mm 0.1-0-0.1mm +/- 0.002mm +/- 0.0004mm 1.00
2I04-005mm Dial Indicator 2I04-005mm 0.005mm 0.4mm 0.2-0-0.2mm +/- 0.005mm +/- 0.001mm 1.00
2I100-025 Dial Indicator 2I100-025 .00025" .100" 0-.10"-0 +/- .00025" +/- .00005" 5.00
2I10-002mm Dial Indicator 2I10-002mm 0.002mm 1.0mm 0-.1mm-0 +/- 0.002mm +/- 0.0004mm 5.00
2I100-05 Dial Indicator 2I100-05 .0005" .100" 0-.10"-0 +/- .0005" +/- .0001" 5.00
2I18-05 Dial Indicator 2I18-05 .0005" .018" .009"-0-.009" +/- .0005" +/- .0001" 1.00
2I25-005mm Dial Indicator 2I25-005mm 0.005mm 2.5mm 0-.25mm-0 +/- 0.005mm +/- 0.001mm 5.00
2I4-005 Dial Indicator 2I4-005 .00005" .004" .002"-0-.002" +/- .00005" +/- .00001" 1.00
2i50-01 Dial Indicator 2I50-01 .0001" .050" 0-.005"-0 +/- .0001" +/- .00002" 5.00
2I9-01 Dial Indicator 2I9-01 .0001" .009" .0045"-0-.0045" +/- .0001" +/- .00002" 1.00
3I01-001mm Dial Indicator 3I01-001mm 0.001mm 0.1mm 0.05-0-0.05mm +/- 0.001mm +/- 0.0005mm 1.00
3I02-002mm Dial Indicator 3I02-002mm 0.002mm 0.2mm 0.10-0-0.10mm +/- 0.002mm +/- 0.0005mm 1.00
3I100-05 Dial Indicator 3I100-05 .0005" .100" 0-.010"-0 +/- .0005" +/- .0001" 5.00
3I4-005 Dial Indicator 3I4-005 .00005" .004" .002"-0-.002" +/- .00005" +/- .00002" 1.00
3I50-01 Dial Indicator 3I50-01 .0001" .050" 0-.005"-0 +/- .0001" +/- .00002" 5.00
3I9-01 Dial Indicator 3I9-01 .0001" .009" .0045"-0-.0045" +/- .0001" +/- .00002" 1.00
4I01-0005mm 0.0005mm 0.1mm 0.05-0-0.05mm less than ± 0.0005mm ± 0.0001mm 1.00
4I01-001mm 0.001mm 0.1mm 0.05-0-0.05mm less than ± 0.001mm ± 0.0002mm 1.00
4I02-002mm 0.002mm 0.2mm 0.10-0-0.10mm less than ± 0.002mm ± 0.0004mm 1.00
4I4-002 .00002" .004" .002"-0-.002" less than +/- .00002" +/- 10 millionths (.000010") 1.00
4I4-005 .00005" .004" .002"-0-.002" less than ± .00005" ± 10 millionths (.000010") 1.00
4I9-005 .00005" .009" .0045"-0-.0045" less than +/- .00005" +/- 10 millionths (.000010") 1.00
4I9-01 .0001" .009" .0045"-0-.0045" less than ± .0001" ± 20 millionths (.00002") 1.00
S2I/M Dial Indicator S2I/M .0001", 0.002mm .010", 0.24mm 0-.005"-0 +/- .0001", 0.002mm +/- .00002", .0005mm 1.00

Ball Contact 18517

Part Number
18517
Material
Steel
Length
.235"
Diameter
.125" Ball

Ball Contact 47011

Part Number
47011
Material
Steel
Length
.276"
Diameter
.125" Ball

Ball Contact 18518

Part Number
18518
Material
Steel
Length
.375"
Diameter
.125" Ball

Ball Contact 18519

Part Number
18519
Material
Ruby
Length
.276"
Diameter
.125" Ball

Ball Contact 18520

Part Number
18520
Material
Carbide
Length
.276"
Diameter
.250" Radius

Ball Contact 47936

Part Number
47936
Material
Ruby
Length
.276"
Diameter
.180" Radius

Blank Contact 47066

Part Number
47066
Material
Steel
Length
1.00"
Diameter
.156" Dia.

.079 DIA. L

Extended Range Contact 16631

Part Number
16631
Material
Steel
Length
.236"

Extended Shovel Contact 4082-ES

Part Number
4082-ES
Material
Carbide
Diameter
.125" Dia.

Extension Contact 18531

Part Number
18531
Material
Steel
Length
.32"
Diameter
.156" Dia.

Extension Contact 47072

Part Number
47072
Material
Steel
Length
.500"
Diameter
.156" Dia.

Extension Contact 47071

Part Number
47071
Material
Steel
Length
1.000"
Diameter
.156" Dia.

4-48 male to M 2.5 Contact 162

Part Number
162
Material
Steel
Length
.30"

M 2.5 male to 4-48 Contact 163

Part Number
163
Material
Steel
Length
.30"

5-44 male to 4-48 Contact 164

Part Number
164
Material
Steel
Length
.37"

Flat Contact 47937

Part Number
47937
Material
Steel
Length
.250"
Diameter
.156" Dia.

Flat Contact 47076

Part Number
47076
Material
Steel
Length
.500"
Diameter
.156" Dia.

Flat Contact 47079

Part Number
47079
Material
Steel
Length
.750"
Diameter
.156" Dia.

Flat Contact 47074

Part Number
47074
Material
Steel
Length
1.00"
Diameter
.156" Dia.

Flat Contact 18532

Part Number
18532
Material
Carbide
Length
.250"
Diameter
.156" Dia.

Flat Contact 18533

Part Number
18533
Material
Carbide
Length
.500"
Diameter
.156" Dia.

Flat Contact 18534

Part Number
18534
Material
Carbide
Length
.750"
Diameter
.156" Dia.

Flat Contact 18535

Part Number
18535
Material
Carbide
Length
1.00"
Diameter
.156" Dia.

Flat Pin Contact 18524

Part Number
18524
Material
Steel
Length
.100"
Diameter
.020" Dia.

Flat Pin Contact 18525

Part Number
18525
Material
Steel
Length
.100"
Diameter
.040" Dia.

Flat Pin Contact 18526

Part Number
18526
Material
Steel
Length
.200"
Diameter
.060" Dia.

Flat Pin Contact 18527

Part Number
18527
Material
Steel
Length
.500"
Diameter
.080" Dia.

Mushroom Contact 297-S

Part Number
297-S
Material
Steel
Diameter
.250" Dia.

Mushroom Contact 297-C

Part Number
297-C
Material
Carbide
Diameter
.250" Dia.

Mushroom Contact 298-S

Part Number
298-S
Material
Steel
Diameter
.500" Dia.

Mushroom Contact 110

Part Number
110
Material
Steel
Length
.250"
Diameter
.250" Dia.

Needle Contact 3655

Part Number
3655
Material
Steel

.063 DIA. .25

Offset Contact 2740

Part Number
2740
Material
Steel

.063 DIA. .25

Offset Contact 2740-C

Part Number
2740-C
Material
Carbide

Radius Contact 47075

Part Number
47075
Material
Steel
Length
.500"
Diameter
.156" Dia., .25" Rad.

Radius Contact 47080

Part Number
47080
Material
Steel
Length
.750"
Diameter
.156" Dia., .25" Rad.

Radius Contact 47073

Part Number
47073
Material
Steel
Length
1.000"
Diameter
.156" Dia., .25" Rad.

Radius Contact 112

Part Number
112
Material
Steel
Length
.250"
Diameter
.187" Dia., .25 Rad.

Rail Contact 18528

Part Number
18528
Material
Steel
Length
.100"

Rail Contact 18529

Part Number
18529
Material
Steel
Length
.150"

Rail Contact 18530

Part Number
18530
Material
Steel
Length
.200"

Shovel Contact 4082-SN

Part Number
4082-SN
Material
Steel

Shovel Contact 4085-CSN

Part Number
4085-CSN
Material
Carbide

Shovel Contact 4082-ESN

Part Number
4082-ESN
Material
Carbide

Taper Flat Contact 18522

Part Number
18522
Material
Carbide
Length
.040" Dia.
Diameter
.040" Dia.

Taper Flat Contact 47077

Part Number
47077
Material
Steel
Length
.060" Dia.
Diameter
.060" Dia.

Taper Flat Contact 47943

Part Number
47943
Material
Carbide
Length
.060" Dia.
Diameter
.060" Dia.

Taper Radius Contact 302-S

Part Number
302-S
Material
Steel

Taper Radius Contact 302-C

Part Number
302-C
Material
Carbide

Flat 49162

Part Number
Back Type
Flat

Lugback 49161

Part Number
Back Type
Lugback

Offset Lugback 49160

Part Number
Back Type
Offset Lugback

Slideback 49188

Part Number
Back Type
Slideback

Screwback 49201

Part Number
Back Type
Screwback

Postback 49293

Part Number
Back Type
Postback

.040" Indicator Contact Spacer

Part Number
175-1

.060" Indicator Contact Spacer

Part Number
175-2

.090" Indicator Contact Spacer

Part Number
175-3

Stem Bushing

Part Number
125

Helping Spring

Part Number
120