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.

Display

Features

• 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

Models

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

Options

Contacts

• 18517 Material: Steel Length: .235"
• 47011 Material: Steel Length: .276"
• 18518 Material: Steel Length: .375"
• 18519 Material: Ruby Length: .276"
• 18520 Material: Carbide Length: .276"
• 47936 Material: Ruby Length: .276"
• 47066 Material: Steel Length: 1.00"
• 16631 Material: Steel Length: .236"
• 4082-ES Material: Carbide
• 18531 Material: Steel Length: .32"
• 47072 Material: Steel Length: .500"
• 47071 Material: Steel Length: 1.000"
• 162 Material: Steel Length: .30"
• 163 Material: Steel Length: .30"
• 164 Material: Steel Length: .37"
• 47937 Material: Steel Length: .250"
• 47076 Material: Steel Length: .500"
• 47079 Material: Steel Length: .750"
• 47074 Material: Steel Length: 1.00"
• 18532 Material: Carbide Length: .250"
• 18533 Material: Carbide Length: .500"
• 18534 Material: Carbide Length: .750"
• 18535 Material: Carbide Length: 1.00"
• 18524 Material: Steel Length: .100"
• 18525 Material: Steel Length: .100"
• 18526 Material: Steel Length: .200"
• 18527 Material: Steel Length: .500"
• 297-S Material: Steel
• 297-C Material: Carbide
• 298-S Material: Steel
• 110 Material: Steel Length: .250"
• 3655 Material: Steel
• 2740 Material: Steel
• 2740-C Material: Carbide
• 47075 Material: Steel Length: .500"
• 47080 Material: Steel Length: .750"
• 47073 Material: Steel Length: 1.000"
• 112 Material: Steel Length: .250"
• 18528 Material: Steel Length: .100"
• 18529 Material: Steel Length: .150"
• 18530 Material: Steel Length: .200"
• 4082-SN Material: Steel
• 4085-CSN Material: Carbide
• 4082-ESN Material: Carbide
• 18522 Material: Carbide Length: .040" Dia.
• 47077 Material: Steel Length: .060" Dia.
• 47943 Material: Carbide Length: .060" Dia.
• 302-S Material: Steel
• 302-C Material: Carbide

Back Options

• 49162

  Back Type:

  Flat
• 49161

  Back Type:

  Lugback
• 49160

  Back Type:

  Offset Lugback
• 49188

  Back Type:

  Slideback
• 49201

  Back Type:

  Screwback
• 49293

  Back Type:

  Postback

Accessories

• 

  175-1

  .040" Indicator Contact Spacer
• 

  175-2

  .060" Indicator Contact Spacer
• 

  175-3

  .090" Indicator Contact Spacer
• 

  125

  Stem Bushing
• 

  120

  Helping Spring

Resources

• Attachment	Size
  group 2 features.pdf	686.21 KB
  group 3 features.pdf	899.97 KB
  group 4 features.pdf	996.62 KB
  group 2 models.pdf	1.88 MB
  group 3 models.pdf	1.14 MB
  group 4 models.pdf	1.25 MB
  Indicator Case Group 2	90.84 KB
  Indicator Case Group 3	103 KB
  indicator-case-group-4.pdf	96.72 KB